马如云，1997年在兰州大学获得博士学位，同年破格晋升为教授。1998年—1999年美国康涅狄格中央州立大学（CCSU）访问学者。2004年—2005年澳大利亚昆士兰大学（UQ）访问学者。现为西北师范大学数学与统计学院教授、博士生导师、美国《Math Review》及德国《Zentralblatt Math》评论员，中国数学会第十二、十三届理事。已培养博士18名、硕士50余名。
主要研究方向是微分方程解的分歧、线性微分算子和差分算子谱理论。在科学出版社出版专著《差分方程理论及其应用》、《非线性常微分方程非局部问题》和《线性微分方程的非线性扰动》；在《Journal of Functional Analysis》、《Journal of Differential Equations》、《Discrete and Continuous Dynamical Systems》、《Zeitschrift für Angewandte Mathematik und Physik》和《Linear Algebra and its Applications》等SCI刊物上论文发表100余篇。入选Elsevier发布2014-2019年中国高被引学者榜单。至2020年11月，其论文已被SCI刊物引用2866次。
主持国家自然科学基金项目7项；主持省部级项目8项。作为牵头人，荣获甘肃省自然科学奖一等奖1次、甘肃省自然科学奖二等奖4次、甘肃省科技进步奖三等奖5次、甘肃省高校科技进步奖一等奖6次。国家高层次人才，荣获教育部优秀骨干教师、甘肃省优秀专家、甘肃省名师奖及甘肃省园丁奖。2012年起享受国务院颁发的政府特殊津贴；2014年获中国侨界贡献奖。2015年荣获秦元勋数学奖。2009年入选甘肃省科技领军人才第一层次。
马如云科学基金项目
* 2016，主持国家自然科学基金专项基金项目“承办第六届全国数学文化论坛”，（编号：11626016）
* 2017.01---2020.12，主持国家自然科学基金面上项目“一般区域上Minkowsky空间中平均曲率方程研究”，（编号：11671322）
* 2014.01---2017.12，主持国家自然科学基金“带有特定类型非线性微分算子的常微分方程边值问题研究”（编号：11361054）
* 2012.09---2013.12, 甘肃省自然科学研究基金计划, S-H方程和广义F-K方程的周期解研究 （no. 1208RJZA258）
* 2012.12---2015.12, 高等学校博士学科点专项科研基金（博导类）非线性四阶微分方程解的分支研究 SRFDP （no. 20126203110004）
* 2011.01---2013.12, 主持国家自然科学基金“高阶线性差分算子的谱结构及相应非线性问题解的分歧”（编号：11061030）
* 2009.11.25---甘肃省高等学校基本科研业务费“弹性梁微分算子和差分算子的谱及其非线性问题的分歧” （编号： 5001-110）
* 2006.11---2008.12, 主持教育部高等学校博士学科点专项科研基金“线性常微分方程非局部问题的谱结构及其相应的非线性问题研究”(编号：20060736001)
* 2007.01---2009.1，主持国家自然科学基金“线性常微分方程非局部特征及其非线性扰动”（编号：10671158）
* 1999.01---2001.12, 主持国家自然科学基金青年项目“非线性常微分方程多点边值问题”（编号：19801028）
* 2003.01---2005.12, 主持国家自然科学基金项目“非线性常微分方程内部值问题”（编号：10271095）
* 2003.01---2005.12, 主持教育部优秀青年教师资助项目“非线性常微分方程非局部边值问题”。 (编号：2098)
* 2001.01---2003.12, 主持教育部高校骨干青年教师资助计划项目“非线性常微分方程泛函边值问题”。 （编号：GG-110-10736-1003）
* 2002.01---2004.12, 主持教育部科学技术研究重点项目 “非线性微分方程的理论研究及应用” （地方02147）
* 2002.01---2004.12, 主持西北师范大学知识与科技创新工程项目“非线性模型的理论分析及应用研究” （编号：NWNU-KJCXGC-212)
* 2004.06---2006.12, 主持教育部“春晖计划”计划项目“材料科学中的微分方程自由边值问题研究” （编号：Z2004-1-62033)
* 2005.09---2007.12, 主持甘肃省自然科学基金项目项目“常微分方程多点边值问题解的整体分歧及其应用” （编号： 3ZS051-A25-016)
* 2006.07---2007.12, 教育部留学回国人员科研启动基金“常微分方程多点边值问题解的整体分歧研究” 教外司留[2006]331号
* 2006.07---2009.12, 主持西北师范大学知识与科技创新工程交叉团队项目“复杂系统方程的求解及其应用研究” （编号：NWNU-KJCXGC-03-17)
马如云荣誉称号
2019-11-27荣获甘肃省优秀博士学位论文（徐嫚）指导教师
2019-01-18入选Elsevier发布2019年中国高被引学者榜单
2018-01-16入选Elsevier发布2018年中国高被引学者榜单
2017-01-19入选Elsevier发布2017年中国高被引学者榜单
2017-11-02 荣获甘肃省优秀博士学位论文（陈天兰）指导教师
2017-05-12 荣获甘肃省优秀博士学位论文（高红亮）指导教师
2017-02-28入选Elsevier发布2016年中国高被引学者榜单，位列数学学科第九
2016年6月18日在北京远望楼出任国家科技奖初评专家
2016.01入选Elsevier发布2015年中国高被引学者榜单，位列“数学类”第九
2015.11.20当选中国数学会理事
2015.07 第七届秦元勋数学奖（颁奖地点：沈阳师范大学）
2015入选Elsevier发布2014年中国高被引学者榜单， 位列“数学类”第八
2014年荣获第五届中国侨界贡献奖
2014年荣获甘肃省优秀博士学位论文指导教师
2013年马如云享受国务院颁发的政府特殊津贴人员
2013年荣获甘肃省基础研究工作先进个人荣誉称号
2012年6月第一届甘肃省优秀科技工作者奖
2010年9月荣获西北师范大学优秀成果奖
2009年11月入选甘肃省科技领军人才第一层次
2009年12月入选 国家新世纪百千万人才工程
2007年评为甘肃省省级教学名师
2006年7月甘肃省‘园丁奖’优秀教师
2006年6月《常微分方程》被评为甘肃省省级精品课程
2005年9月荣获西北师范大学第二届学生心目中“我最喜爱的教师”
2003年12月荣获“甘肃省优秀青年”
2002年12月荣获教育部高等学校优秀骨干教师
2002年7月荣获西北师范大学优秀教师
2001年5月荣获甘肃省优秀专家称号
1999年4月荣获西北师范大学“孔宪武优秀中青年科研工作者奖”
1998年入选333人才工程
1998年被评为甘肃省跨世纪学术带头人
1997年12月荣获甘肃省第二届青年科技奖
1996年12月荣获甘肃省第三届青年教师成才奖
1998年---1999年在美国康涅狄格州立大学学术访问期间，受到该校Judd 校长的嘉奖
1995--1996、1997-1998、1999-2000 年度西北师范大学学科研双骨干
马如云科研项目获奖
[19] 2018.12项目“几类非线性方程解的分歧、爆破及行波的波速”荣获甘肃省自然科学奖一等奖。2018-Z1-002 排名第一。
[18] 2017.10项目“拟线性椭圆方程的解集分支及相关线性离散问题的谱”荣获甘肃省高等学校科学研究优秀成果（科学技术类）一等奖。2017KYCGA-008 甘肃省教育厅。
[17] 2015.10项目“高阶微分方程的Green函数的构造方法及解集连通分支研究”荣获甘肃省高等学校科学研究优秀成果（科学技术）二等奖。甘肃省教育厅。 (2015KJ-032)
[16] 2014.11项目 “静态梁方程的分歧及带干摩擦的振荡子研究”荣获甘肃省自然科学奖二等奖。2014-Z2-002 排名第一
[15] 2014.09项目 “高阶微分方程的Disconjugacy及相关分歧问题研究”荣获甘肃省高校科技进步一等奖。 排名第一
[14] 2012.08项目“线性微分算子的谱及相关非线性分歧问题研究”荣获甘肃省高校科技进步一等奖。排名第一
[13] 2011.01项目“非线性边值问题解的整体分歧及其应用”荣获甘肃省自然科学奖二等奖。排名第一
[12] 2010.10项目“拓扑方法在非线性微分方程中的应用研究”荣获甘肃省高校科技进步一等奖。排名第一
[11] 2008.11项目“线性常微分方程的谱结构及其相关分歧问题研究”荣获甘肃省自然科学奖二等奖。 排名第一
[10] 2008.07项目“线性常微分方程的谱结构及其相关分歧问题研究”荣获甘肃省高校科学技术奖一等奖。 排名第一
[9] 2006.12项目“常微分方程非局部问题及其解的分歧研究”荣获甘肃省自然科学奖二等奖。排名第一
[8] 2006.08项目“常微分方程非局部问题及其解的分歧研究”荣获甘肃省高校科学技术奖一等奖。排名第一
[7] 2005.09项目“常微分方程内部值问题及相关问题”荣获甘肃省科技进步三等奖。（该项目曾于2004.05荣获甘肃省高校科技进步二等奖） 排名第一
[6] 2004.05项目“常微分方程内部值问题及相关问题”荣获甘肃省高校科技进步二等奖。排名第一
[5] 2003.04项目“非线性微分方程多点边值问题”荣获甘肃省科技进步三等奖（该项目曾于2002.10荣获甘肃省高校科技进步一等奖）排名第一
[4] 2002.04“非线性微分方程与抽象积分研究”荣获甘肃省科技进步三等奖。（该项目曾于2000.07荣获甘肃省高校科技进步一等奖） 排名第一
[3] 1999.03项目“非经典边值问题和非线性模型研究”荣获甘肃省科技进步三等奖。 (该项目曾于1998.07荣获甘肃省高校科技进步一等奖) 排名第一
[2] 1997.05项目 “线性微分方程的非线性扰动”荣获甘肃省科技进步三等奖。 (该项目曾于1996.07荣获甘肃省高校科技进步一等奖) 排名第一
[1] 1994.07项目“非线性常微分方程研究”荣获甘肃省高校科技进步二等奖。 排名第一
马如云学术论著（至2020.02）
[273] Ruyun Ma, Liping Wei, Zhichao Chen, Evolution of bifurcation curves for one-dimensional Minkowski-curvature problem. Appl. Math. Lett. 103 (2020), 106176, 8 pp.
[272] Ruyun Ma, Suyun Wang, Positive solutions for some semi-positone problems with nonlinear boundary conditions via bifurcation theory. Mediterr. J. Math. 17(1) (2020), Art. 12, 12 pp.
[271] Ruyun Ma, Man Xu, Zhiqian He, Nonconstant positive radial solutions for Neumann problem involving the mean extrinsic curvature operator. J. Math. Anal. Appl. 484(2) (2020), 13 pp.
[270]马如云、高承华、马慧莉、路燕琼，《差分方程理论及其应用》，科学出版社，2019-06.
[269] Zhongzi Zhao and Ruyun Ma， Local and global bifurcation of steady states to a general Brusselator model, Advances in Difference Equations 2019:491 (2019), 1-14.
[268] Zhiqian He, Ruyun Ma, Man Xu , Positive solutions for a class of semipositone periodic boundary value problems via bifurcation theory, Electronic Journal of Qualitative Theory of Differential Equations 2019, Paper No. 29, 15 pp.
[267] Ruyun Ma, Man Xu, Dongliang Yan, Discrete Nonselfadjoint Second Order Two-Point Problems at Resonance, Mediterranean Journal of Mathematics 16(2） (2019), Art. 54, 14 pp.
[266 ] Ruyun Ma, Man Xu, Connected components of positive solutions for a Dirichlet problem involving the mean curvature operator in Minkowski space, Discrete and Continuous Dynamical Systems Series B 24( 6) 2019,. 2701-2718.
[265] Ruyun Ma， Zhiqian He， Dongliang Yan，Three radially symmetric k-admissible solutions for k-Hessian equation，Complex Variables and Elliptic Equation 64(8) (2019), 1353–1363.
[264] Tianlan Chen, Ruyun Ma & Yongwen Liang, Multiple positive solutions of second-order nonlinear difference equations with discrete singular Φ-Laplacian, Journal of Difference Equations and Applications 25(1) (2019), 38–55.
[263] Dongliang Yan, Ruyun Ma, Global behavior of positive solutions for some semipositone fourth-order problems, Advances in Difference Equations (2018) 2018:443
[262] Man Xu, Ruyun Ma, S-shaped connected component for a nonlinear Dirichlet problem involving mean curvature operator in one-dimension Minkowski space, Bull. Korean Math. Soc. 55(6) (2018), pp. 1891-1908
[261] Man Xu, Ruyun Ma and Zhiqian He, Positive solutions of the periodic problems for quasilinear difference equation with sign-changing weight, Advances in Difference Equations (2018) 2018:393, 1-13.
[260] Ruyun Ma, Positive solutions for Dirichlet problems involving the mean curvature operator in Minkowski space, Monatsh Math 187 (2018)，315–325.
[259] Man Xu, Ruyun Ma, Lower and upper solutions method for a problem of elastic beam whose one end simply supported and the other end sliding clamped, Turkish Journal of Mathematics (2018) 42: 1018-1030
[258] Zhiqian He, Ruyun Ma, Man Xu, Three positive solutions for second-order periodic boundary value problems with sign-changing weight, Boundary Value Problems (2018) 2018:93, 1-17.
[257] Man Xu，Ruyun Ma，Nonlinear elastic beam problems with the parameter near resonance，Open Mathematics，2018 16: 1176–118。
[256] Ruyun Ma, Chenghua Gao, Yanqiong Lu, Spectrum theory of second-order difference equations with indefinite weight, Journal of Spectral Theory 8(3), 2018.
[255] Ruyun Ma, Positive solutions for Dirichlet problems involving the mean curvature operator in Minkowski space, Monatshefte für Mathematik
DOI 10.1007/s00605-017-1133-z
[254] Ruyun Ma, Jinxiang Wang Yan Long, Lower and upper solutions method for the problem of elastic beam with hinged ends, Journal of Fixed Point Theory and Applications, 20:46, 2018, 1-13.
[253] Guo-Bao Zhang, Ruyun Ma, Xueshi Li, Traveling waves of a Lotka-Volterra strong competition system with nonlocal dispersal, Discrete and Continuous Dynamical Systems Series B 23(2), 2018，587-608
[252] Man Xu, Ruyun Ma, Existence of solutions for a discrete Neumann problem with singular ѱ-Laplacian operator, Advances in Difference Equations (2018) 2018:9, 1-12.
[251] Ruyun Ma, Man Xu, Yan Long, Principal eigenvalues of a second-order difference operator with sign-changing weight and its applications, Discrete Dynamics in Nature and Society Volume 2018, Article ID 1949254, 8 pages
[250] Ruyun Ma, Man Xu, Positive rotationally symmetric solutions for a Dirichlet problem involving the higher mean curvature operator in Minkowski space, Journal of Mathematical Analysis and Applications 460 (2018) 33–46
[249] Ruyun Ma, Hongliang Gao & Tianlan Chen, Radial positive solutions for Neumann problems without growth restrictions, Complex Variables and Elliptic Equations 62(6)(2017) , 848-861
[248] Chenghua Gao; Ruyun Ma, Fei Zhang, Spectrum of discrete left definite Sturm-Liouville problems with eigenparameter-dependent boundary conditions. Linear Multilinear Algebra 65(9) (2017), 1905–1923.
[247] Cheng-hua Gao, Fei Zhang, Ruyun Ma, Existence of positive solutions of second-order periodic boundary value problems with sign-changing Green's function. Acta Math. Appl. Sin. Engl. Ser. 33(2) (2017), 263–268.
[246] Jinxiang Wang, RuyunMa and Jin Wen, S-Shaped Connected Component for Nonlinear Fourth-Order Problem of Elastic Beam Equation, Journal of Function Spaces Volume 2017, Article ID 1069491, 8 pages
[245] Guo-bao Zhang and Ruyun Ma, Front-like entire solutions for a delayed nonlocal dispersal equation with convolution type bistable nonlinearity, Rocky Mountain Journal of Mathematics Volume 47(4) 2017, 1-50.
[244] Man Xu, Ruyun Ma, On a fourth order boundary value problem at resonance, Journal of Function Spaces , Volume 2017, Article ID 2641856, 7 pages.
[243] Ruyun Ma, Hongliang Gao, Multiple positive solutions for a class of semipositone Neumann problems with singular -Laplacian, Acta Mathematica Scientia 2017,37B(5):1472–1482.
[242] 陈克恭，马如云，“新三统”统“三统”：伟大时代的理论命题, 甘肃社会科学， 2017年第3期， 1-5.
[241] Jinxiang Wang & Ruyun Ma, Reversed S-shaped connected component for a fourth-order boundary value problem, Advances in Difference Equations (2017) 2017:113, 1-11
[240] Ruyun Ma, Chenghua Gao, Yanqiong Lu, Spectrum theory of second-order difference equations with indefinite weight, Journal of Spectral Theory
[239] Ruyun Ma, Hongliang Gao & Tianlan Chen, Radial positive solutions for Neumann problems without growth restrictions, Complex Variables and Elliptic Equations 62(6)(2017) , 848-861
[238] Ruyun Ma, Tianlan Chen, Yanqiong Lu, On the bonheure-noris-weth conjecture in the case of linearly bounded nonlinearities, Discrete Contin. Dyn. Syst. Ser. B 21(8) (2016), 2649-2662.
[237] Ruyun Ma, Tianlan Chen and Hongliang Gao, On positive solutions of the Dirichlet problem involving the extrinsic mean curvature operator, Electronic Journal of Qualitative Theory of Differential Equations 2016, No. 98, 1–10; doi: 10.14232/ejqtde.2016.1.98
[236] 陈克恭、马如云，太极图的数学表达，《光明日报》第16版， 2016年10月17日 http://epaper.gmw.cn/gmrb/html/2016-10/17/nw.D110000gmrb_20161017_2-16.htm
[235] Jinxiang Wang, Ruyun Ma, S-shaped connected component for the fourth-order boundary value problem, Boundary Value Problems (2016) 2016:189, 1-13.
[234] Ruyun Ma, Chenghua Gao, Tianlan Chen, Radial positive solutions for Neumann problems without growth restrictions, Complex Variables and Elliptic Equations 2016, http://dx.doi.org/10.1080/17476933.2016.1251420
[233] Ruyun Ma, Chenghua Gao, Yanqiong Lu, Spectrum theory of second-order difference equations with indefinite weight, Journal of Spectral Theory, 2016
[232] Kegong Chen, Ruyun Ma, A Mathematic Expression of the Genes of Chinese Traditional Philosophy， arxiv: 1611.04293 http://arxiv.org/abs/1611.04293
[231] Ruyun Ma, Tianlan Chen, Multiple positive solutions of the Dirichlet problem for the prescribed mean curvature equation in Minkowski space, Electron. J. Differential Equations Vol. 2016 (2016), No. 180, pp. 1-7.
[230] Ruyun Ma, Tianlan Chen, Haiyan Wang, Nonconstant radial positive solutions of elliptic systems with Neumann boundary conditions, J. Math. Anal. Appl. 443 (2016) 542–565.
[229] 马如云，攻坚从最简單的模型人手，《中国教育报》 2016年05月23日【名师论教】栏目. 原文链接：http://paper.jyb.cn/zgjyb/html/2016-05/23/content_456667.htm?div=-1
[228] Ruyun Ma, Ruikuan Liu, Multiplicity of radial solutions of quasilinear problems with minimum and maximum, Advanced Nonlinear Studies, Adv. Nonlinear Stud. 2016; 16 (2):273–286
[227] Chenghua Gao, Ruyun Ma, Eigenvalues of discrete Sturm–Liouville problems with eigenparameter dependent boundary conditions, Linear Algebra and its Applications 503 (2016) 100–119
[226] Ruyun Ma, Hongliang Gao, Yanqiong Lu，Global structure of radial positive solutions for aprescribed mean curvature problem in a ball，Journal of Functional Analysis 270(7)(2016), 2430-2455.
[225] Tianlan Chen, Ruyun Ma, Positive solutions for a class of semipositone Neumann problems, Boundary Value Problems (2016) 2016:19, 1-12.
[224] Ruyun Ma, Hongliang Gao, Yanqiong Lu, Construction of lower and upper solutions, Radial positive solutions of nonlinear elliptic systems with Neumann boundary conditions, J. Math. Anal. Appl. 434 (2016) 1240–1252.
[223] Ruyun Ma and Lu Zhang, Construction of lower and upper solutions for first-order periodic problem, Boundary Value Problems (2015) 2015:190, 1-8.
[222] Ruyun Ma and Yanqiong Lu, Multiplicity of positive solutions for second order nonlinear Dirichlet problem with one-dimension Minkowski-curvature operator, Advanced Nonlinear Studies 15 (2015), 789–803.
[221] 陈克恭,马如云， 中国太极图理论的数学模型及应用II，西北师范大学学报(自然科学版)(Natural science)，第51卷第6期， 2015， 1-5.
[220] 陈克恭,马如云， 中国太极图理论的数学模型及应用，西北师范大学学报(自然科学版)(Natural science)，第51卷第5期， 2015， 1-8.
[219] Hongliang Gao and Ruyun Ma, Multiple positive solutions for a class of Neumann problems, Electronic Journal of Qualitative Theory of Differential Equations 2015, No. 48, 1–7.
[218] Guo-Bao Zhang, Ruyun Ma, Existence, uniqueness and stability of traveling wavefronts for nonlocal dispersal equations with convolution type bistable nonlinearity, Electron. J. Diff. Equ., Vol. 2015 (2015), No. 144, pp. 1-27.
[217] Tianlan Chen, Ruyun Ma, Solvability for some boundary valueproblems with discrete φ-Laplacian operators, Advances in Difference Equations (2015) 2015:139.
[216] Ruyun Ma, Lu Zhang, Ruikuan Liu, Existence results for nonlinear problems with f-Laplacian, Electronic Journal of Qualitative Theory of Differential Equations 2015, No. 22, 1–7.
[215] Guowei Dai, Ruyun Ma, Haiyan Wang, Feng Wang, Kuai Xu, Partial differential equations with robin boundary condition in online social networks Discrete and Continuous Dynamical Systems series B 20(6), 2015, 1609–1624.
[214] Ruyun Ma, Ruipeng Chen, Yanqiong Lu, Coexistence states of an elliptic system modeling a population with two age groups, Computers and Mathematics with Applications 69 (2015), 1263–1271
[213] Ruyun Ma, Hongliang Gao, Positive convex solutions of boundary value problems arising from Monge-Ampère equations, Applied Mathematics and Computation 259 (2015) 390–402.
[212] Chenghua Gao, Ruyun Ma, Eigenvalues of discrete linear second-order periodic and antiperiodic eigenvalue problems with sign-changing weight, Linear Algebra and its Applications 467 (2015) 40–56.
[211] Guowei Dai, Ruyun Ma, Unilateral global bifurcation for p-Laplacian with non-p−1- linearization nonlinearity, Discrete and Continuous Dynamical Systems 35(1), 2015, 99–116.
[210] Guo-Bao Zhang, Ruyun Ma, Spreading speeds and traveling waves for a nonlocal dispersal equation with convolution-type crossing-monostable nonlinearity, Zeitschrift für angewandte Mathematik und Physik, 65(5), 2014, 819-844.
[209] Ruyun Ma, Ruipeng Chen and Yanqiong Lu, Positive solutions of an elliptic system modeling a population with two age groups, Applied Mathematics and Computation 249 (2014) 114-120.
[208] Lu Zhang, Ruyun Ma, Bifurcation structure of an asymptotically linear second-order semipositone discrete boundary value problem. J. Shandong Univ. Nat. Sci. 49 (2014), no. 3, 79-83.
[207] Ruyun Ma, Ruipeng Chen and Yanqiong Lu, Steady states of a nonlinear elliptic system arising from population dynamics, Boundary Value Problems 2014, 2014:185.
[206] RuyunMa and Lingfang Jiang, Existence of sign-changing solutions to equations involving the one-dimensional p-Laplacian, Journal of Applied Mathematics Volume 2014, Article ID 810193, 9 pages
[205] Yanqiong Lu and Ruyun Ma, Global structure of positive solutions for Second order difference equation with nonlinear boundary value condition, Advances in Difference Equations 2014, 2014:188, 11page.
[204] RuyunMa and Yanqiong Lu, Periodic solutions of second order nonlinear difference equations with singular -Laplacian operator, Discrete Dynamics in Nature and Society
Volume 2014, Article ID 637242, 10 pages.
[203] Hongliang Gao and Ruyun Ma, On a System Modelling a Population with Two Age Groups, Abstract and Applied Analysis Volume 2014, Article ID 920348, 5 pages.
[202] Ruyun Ma, Yanqiong Lu, Ruipeng Chen, Global Bifurcation of Positive Solutions of Asymptotically Linear Elliptic Problems, Abstract and Applied Analysis 2014, Article ID 749368, 7 pages.
[201] Yanqong Lu, Ruyun Ma and Hongliang Gao, Existence and multiplicity of positive solutions for one-dimension prescribed mean curvature equations, Boundary Value Problems 2014, 2014:120.
[200] Ruyun Ma, Ruipeng Chen, Yanqiong Lu, Method of lower and upper solutions for elliptic systems with nonlinear boundary condition and its applications, Journal of Applied Mathematics
Volume 2014, Article ID 705298, 7 pages.
[199] Ruyun Ma, Yanqiong Lu, Bifurcation from interval at infinity for discrete eigenvalue problems which are not linearizable, Advances in Difference Equations 2014, 2014:125 1-15.
[198] Ruyun Ma, Chenghua Gao, Spectrum of discrete second-order difference operator with sign-changing weight and its applications, Discrete Dynamics in Nature and Society, Volume 2014, Article ID 590968, 9 pages.
[197] Ruyun Ma, Lingfang Jiang, Existence of positive solutions of one-dimensional prescribed mean curvature equation, Mathematical Problems in Engineering, Volume 2014, Article ID 610926, 10 pages.
[196] Hua Luo and Ruyun Ma, The existence and application of unbounded connected components, Journal of Applied Mathematics, Volume 2014, Article ID 780486, 7 pages.
[195] Guowei Dai and Ruyun Ma, Bifurcations of positive or negative continuum from the Fucik spectrum and its applications, Communications in Applied Analysis 18 (2014), 225–238.
[194] Yanqiong Lu, Ruyun Ma, Existence of Positive Solutions for Second-Order Neumann Difference System, Journal of Function Spaces, Volume 2014, Article ID 815170, 6 pages.
[193] Ruikuan Liu, Ruyun Ma, Existence of positive solutions for an elastic beam equation with nonlinear boundary conditions, Journal of Applied Mathematics, Volume 2014, Article ID 972135, 5 pages
[192] Ruyun Ma, Ruipeng Chen, Zhiqian He, Positive periodic solutions of second-order differential equations with weak singularities, Applied Mathematics and Computation 232 (2014) 97-103.
[191] Ruyun Ma,Yanqiong Lu, Disconjugacy and extremal solutions of nonlinear third-order equations, Communications on Pure and Applied Analysis 13(3), 2014, 1223-1236.
[190] Ruyun Ma, Ruipeng Chen and Yanqiong Lu, Positive solutions for a class of sublinear elliptic systems, Boundary Value Problems 2014, 2014:28.
[189] Ruyun Ma,Yanqiong Lu, Existence of positive periodic solutions for second-order functional differential equations, Monatsh Math (2014) 173:67-81.
[188] Yanqiong Lu and Ruyun Ma, Reverse-Order Lower and Upper Functions for Periodic Problems of Second-Order Singular Difference Equations，Abstract and Applied Analysis Volume 2013, Article ID 176465, 5 pages.
[187] Ruyun Ma, Xilan Liu, and Jia Xu, Nodal Solutions of the p-Laplacian with Sign-Changing Weight, Abstract and Applied Analysis Volume 2013, Article ID 406350, 8 pages.
[186] Ruyun Ma, Chenghua Gao, and Yanqiong Lu, Spectrum of Discrete Second-Order Neumann Boundary Value Problems with Sign-Changing Weight, Abstract and Applied Analysis Volume 2013, Article ID 280508, 10 pages.
[185] Ruyun Ma, Guowei Dai, Global bifurcation and nodal solutions for a Sturm–Liouville problem with a nonsmooth nonlinearity, Journal of Functional Analysis 265 (2013), 1443–1459.
[184] Ruyun Ma, Chenghua Gao, Bifurcation of positive solutions of a nonlinear discrete fourth-order boundary value problem, Z. Angew. Math. Phys. 64(3) (2013), 493–506.
[183] Ruyun Ma, Haiyan Wang, Mohammed Elsanosi, Spectrum of a linear fourth-order differential operator and its applications, Math. Nachr., 1–15 (2013) / DOI 10.1002/mana.201200288.
[182] Ruyun Ma, Jinyi Sun, Mohammed Elsanosi, Sign-changing solutions of second order dirichlet problem with impulse effects, Dynamics of Continuous, Discrete and Impulsive Systems, Series A: Mathematical Analysis 20 (2013) 241-251.
[181] Ruyun Ma, Yanqiong Lu, Ahmed Omer Mohammed Abubaker, On positive solutions to equations involving the one-dimensional p-Laplacian, Boundary Value Problems 2013, 2013:125.
[180] Guowei Dai, Ruyun Ma, Yanqiong Lu, Bifurcation from infinity and nodal solutions of quasilinear problems without the signum condition. J. Math. Anal. Appl. 397 (2013), no. 1, 119–123.
[179] Ruipeng Chen, Ruyun Ma, Global bifurcation of positive radial solutions for an elliptic system in reactor dynamics. Comput. Math. Appl. 65 (2013), no. 8, 1119–1128.
[178] Yong-Kui Chang, Ruyun Ma, Zhi-Han Zhao, Almost periodic solutions to a stochastic differential equation in Hilbert spaces. Results Math. 63 (2013), no. 1-2, 435–449.
[177] Ruyun Ma, Chunjie Xie, AhmedAbubaker,Positive Solutions of the One-Dimensional p-Laplacian with Nonlinearity Defined on a Finite Interval,Abstract and Applied Analysis,Volume 2013, Article ID 492026, 6 pages.
[176] Ruyun Ma, Bianxia Yang, Zhenyan Wang, Positive periodic solutions of first-order delay differential equations with impulses,Applied Mathematics and Computation 219 (2013) 6074–6083.
[175] 马如云,陈瑞鹏,李杰梅,非线性Neumann问题正解的存在性,数学学报 56(3)，2013.
[174] Guo-Bao Zhang and Ruyun Ma, Spreading speeds and traveling waves for a nonlocal dispersal equation with convolution-type crossing-monostable nonlinearity, Z. Angew. Math. Phys.DOI 10.1007/s00033-013-0353-X
[173] Ruyun Ma,Jia Xu,Xiaoling Han,Global structure of positive solutions for superlinear second-order periodic boundary value problems.,Appl. Math. Comput. 218 (2012), no. 10, 5982–5988.
[172] Ruyun Ma,Yanqiong Lu,Tianlan Chen, Existence of one-signed solutions of discrete second-order periodic boundary value problems,Abstr. Appl. Anal. 2012, Art. ID 437912, 13 pp.
[171] Ruyun Ma, Chenghua Gao, Nodal solutions of a nonlinear eigenvalue problem of the Euler-Bernoulli equation,J. Math. Anal. Appl. 387(2)(2012), 1160–1166.
[170] Ruyun Ma, Ruipeng Chen, Existence of one-signed solutions of nonlinear four-point boundary value problems, Czechoslovak Math. J. 62(3)(137) (2012), 593–612.
[169] Ruyun Ma, Yanqiong Lu, Positive periodic solutions of second-order difference equations with weak singularities, Adv. Difference Equ. 2012, 2012:90, 11 pp.
[168] Ruyun Ma, Yanqiong Lu, Existence and multiplicity of positive solutions of a nonlinear discrete fourth-order boundary value problem, Abstr. Appl. Anal. 2012, Art. ID 918082, 17 pp.
[167] Ruyun Ma, Guowei Dai, Chenghua Gao, Existence and multiplicity of positive solutions for a class of p(x) -Kirchhoff type equations,Bound. Value Probl. 2012, 2012:16, 16 pp.
[166] Ruyun Ma, Bianxia Yang, Guowei Dai, Nodal solutions of second-order two-point boundary value problems, Bound. Value Probl. 2012, 2012:13, 10 pp.
[165] Ruyun Ma, Chenghua Gao, Bifurcation of positive solutions of a nonlinear discrete fourth-order boundary value problem, Z. Angew. Math. Phys., DOI 10.1007/s00033-012-0243-7.
[164] Ruiupeng Chen, Ruyun Ma, Positive solutions of the second-order differential systems in reactor dynamics, Appl. Math. Comput. 219(8) (2012), 3882–3892.
[163] Ruiupeng Chen, Ruyun Ma, Dongming Yan, Global bifurcation of positive solutions to Neumann boundary value problems for a second-order ODE. (Chinese), Acta Math. Appl. Sin. 35(3) (2012),515–528.
[162] Ruiupeng Chen, Ruyun Ma, Zhiqian He, Positive periodic solutions of first-order singular systems, Appl. Math. Comput. 218 (23)(2012), 11421–11428.
[161] Chenghua Gao, Guowei Dai, Ruyun Ma, Existence of positive solutions to discrete second-order boundary value problems with indefinite weight, Adv. Difference Equ. 2012, 2012:3, 10 pp.
[160] Guowei Dai, Ruyun Ma, Unilateral global bifurcation phenomena and nodal solutions for p-Laplacian, J. Differential Equations 252 (2012), no. 3, 2448–2468.
[159] Guowei Dai, Ruyun Ma, Yanqiong Lu, Bifurcation from infinity and nodal solutions of quasilinear problems without the signum condition, J. Math. Anal. Appl. 397(1) (2013), 119–123.
[158] Guowei Dai, Ruyun Ma, Qiaozhen Ma, Existence of solutions for a differential inclusion problem with singular coefficients involving the p(x) –Laplacia, Bound. Value Probl. 2012, 2012:11, 15 pp.
[157] Ruyun Ma, Jia Xu, Xiaoling Han, Global structure of positive solutions for superlinear second-order periodic boundary value problems, Appl. Math. Comput. 218 (2012), no. 10, 5982–5988,
[156] Ruyun Ma, Yanqiong Lu, Tianlan Chen, Existence of one-signed solutions of discrete second-order periodic boundary value problem, Abstr. Appl. Anal. 2012, Art. ID 437912, 13 pp.
[155] Ruyun Ma, Chenghua Gao, Nodal solutions of a nonlinear eigenvalue problem of the Euler-Bernoulli equation, J. Math. Anal. Appl. 387 (2012), no. 2, 1160–1166.
[154] Ruyun Ma, Tianlan Chen, Existence of Positive Solutions of Fourth-Order Problems with Integral Boundary Conditions, Bound. Value Probl.,2011 (2011), Art. ID 297578, 17 pp.
[153] Ruyun Ma, Nonlinear periodic boundary value problems with sign-changing Green’s function, Nonlinear Analysis ,74 (2011) 1714–1720.
[152] Ruyun Ma, Guowei Dai, Periodic solutions of nonlocal semilinear fourth-order differential equations , Nonlinear Analysis: TMA 74(15), 2011, 5023-5029.
[151] Guowei Dai, Ruyun Ma, Solutions for a p(x)-Kirchhoff type equation with Neumann boundary data, Nonlinear Analysis:RWA 12(5), 2011, 2666-2680.
[150] Ruyun Ma, Huili Ma, Global structure of positive solutions for superlinear discrete boundary value problems, Journal of Difference Equations and Applications, iFirst article, 2011, 1–10.
[149] Ruyun Ma, Chenghua Gao,Youji Xu, Bifurcation interval for positive solutions to discrete second-order boundary value problems, Journal of Difference Equations and Applications, iFirst article, 2011, 1–15.
[148] Ruyun Ma, Chenghua Gao, Jia Xu, Existence of positive solutions for first order discrete periodic boundary value problems with delay , Nonlinear Analysis: TMA, 74(12), 2011, 4186-4191.
[147] Ruyun Ma, Jia Xu, Xiaoling Han, Global bifurcation of positive solutions of a second-order periodic boundary value problem with indefinite weight , Nonlinear Analysis: TMA, 74(10), 2011, 3379-3385.
[146] Yongkui Chang, Zhihan Zhao, G. M. N’Guérékata, Ruyun Ma, Stepanov-like almost automorphy for stochastic processes and applications to stochastic differential equations, Nonlinear Analysis:RWA 12(2), 2011, 1130-1139.
[145] Ruyun Ma, Second order periodic problems in the presence of dry friction, Nonlinear Analysis: RWA 12（6） (2011), 3306–3314.
[144] Ruyun Ma, Ruipeng Chen, Tianlan Chen, Existence of positive periodic solutions of nonlinear first-order delayed differential equations, J. Math. Anal. Appl. 384（2） (2011), 527–535.
[143] Ruyun Ma,Chenghua Gao, Xiaoqiang Chen, Infinitely many solutions to superlinear second order m-point boundary value problems,Bound. Value Probl. 2011, 2011:14, 11 pp.
[142] Ruyun Ma, Chenghua Gao, Xiaoling Han, Xiaoqiang Chen, Global structure of positive solutions of a discrete problem with sign-changing weight, Discrete Dynamics in Nature and Society 2011, Article ID 624157, 12 pages.
[141] Ruyun Ma, Existence of periodic solutions of a generalized friction oscillator, Nonlinear Anal. RWA 11(5) (2010), 3316–3322.
[140] Ruyun Ma, Jiemei Li, Existence of positive solutions of a singular nonlinear boundary value problem, Bound. Value Probl. 2010, Art. ID 458015, 16 pp.
[139] Ruyun Ma, Chenghua Gao, Ruipeng Chen, Existence of Positive Solutions of Nonlinear Second-Order Periodic Boundary Value Problems, Bound. Value Probl. 2010 Art. ID 626054, 18 pages.
[138] Ruyun Ma, Chenghua Gao, Yongkui Chang, Existence of solutions of a discrete fourth-order boundary value problem,Discrete Dyn. Nat. Soc. 2010, Art. ID 839474, 19 pp.
[137] Ruyun Ma, Youji Xu, Chenghua Gao, Spectrum of Linear Difference Operators and the Solvability of Nonlinear Discrete Problems, Discrete Dyn. Nat. Soc., 2010 Art. ID 757416, 27 pages.
[136] Ruyun Ma, Jiemei Li, Chenghua Gao, Existence of positive solutions of a discrete elastic beam equation, Discrete Dyn. Nat. Soc. 2010, Art. ID 582919, 15 pp.
[135] Ruyun Ma, Tianlan Chen, Yanqiong Lu, Positive Periodic Solutions of Nonlinear First-Order Functional Difference Equations ,Discrete Dyn. Nat. Soc. 2010, 2010 Art. ID 419536, 15 pages.
[134] Ruyun Ma, Youji Xu, Existence of positive solution for nonlinear fourth-order difference equations, Comput. Math. Appl. 59 (2010) (12), 3770–3777.
[133] Ruyun Ma, Ling Xu, Existence of positive solutions of a nonlinear fourth-order boundary value problem, Appl. Math. Lett., 23 (2010)(5), 537–543.
[132] Ruyun Ma, Yulian An, Global structure of positive solutions for superlinear 2m-th boundary value problems, Czechoslovak Math. J. 60(1) (135) (2010), 161–172.
[131] Ruyun Ma, Huili Ma, Positive solutions for nonlinear discrete periodic boundary value problems, Comput. Math. Appl. 59 (1) (2010), 136–141.
[130] Ruyun Ma, Jia Xu, Bifurcation from interval and positive solutions of a nonlinear fourth-order boundary value problem, Nonlinear Anal. 72(1) (2010), 113–122.
[129] Ruyun Ma, Jia Xu, Bifurcation from interval and positive solutions for second order periodic boundary value problems, Dynamic Systems and Applications 19 (2010) 211-224.
[128] Jia Xu, Ruyun Ma, Bifurcation from interval and positive solutions for second order periodic boundary value problems, Appl. Math. Comput. 216(8) (2010), 2463–2471.
[127] Youji Xu, Chenghua Gao, Ruyun Ma, Solvability of a nonlinear fourth-order discrete problem at resonanc, Appl. Math. Comput. 216(2) (2010), 662–670.
[126] Yulian An, Ruyun Ma, Exact multiplicity of solutions for a class of two-point boundary value problems, Electron. J. Differential Equations 2010, No. 27, 7 pp.
[125] Ruyun Ma, Yulian An, Global structure of positive solutions for nonlocal boundary value problems involving integral conditions, Nonlinear Analysis: TMA 71(10), 2009, 4364-4376.
[124] Ruyun Ma, Xiaoling Han, Existence and multiplicity of positive solutions of a nonlinear eigenvalue problem with indefinite weight function,Applied Mathematics and Computation 215(3), 1077-1083.
[123] Ruyun Ma ,Bao Zhu,Existence of positive solutions for a semipositone boundary value problem on the half-line, Computers & Mathematics with Applications 58(8), 1672-1686.
[122] Ruyun Ma, Xiaoling Han, Existence of nodal solutions of a nonlinear eigenvalue problem with indefinite weight function, Nonlinear Analysis: TMA 71(5-6), 2009, 2119-2125.
[121] Ruyun Ma, Huili Ma, Unbounded perturbations of nonlinear discrete periodic problem at resonance, Nonlinear Analysis: TMA 70(7), 2602-2613.
[120] Ruyun Ma,Youji Xu, Chenghua Gao, A global description of the positive solutions of sublinear second-order discrete boundary value problems, Advances in Difference Equations 2009, Article ID 671625, 15 pages.
[119] Hongxia Fan, Ruyun Ma, Loss of positivity in a nonlinear second order ordinary differential equations, Nonlinear Analysis: TMA 71(1-2), 2009, 437-444.
[118] Ruyun Ma, Jiemei Li, Global Bifurcation for Second-Order Neumann Problem with a Set-Valued Term, International Journal of Differential Equations,2009, Article ID 373851, 16 pages.
[117] 马如云, 高承华, Global bifurcation of periodic solutions to second-order ordinary differential equations. (Chinese), Acta Math. Sci. Ser. A 29（5） (2009), 1223–1232.
[116] 马如云, 范虹霞, 韩晓玲, 二阶常微分方程无穷多点边值问题的正解, 数学物理学报, 29A(3), 2009, 699-706.
[115] 徐登洲, 马如云, 专著《线性微分方程的非线性扰动》,科学出版社. 2008年第二版, (1994 年第一版).
[114] Ruyun Ma, Global behavior of the components of nodal solutions of asymptotically linear eigenvalue problems, Applied Mathematics Letters 21 (2008) 754–760.
[113] Ruyun Ma, Yang Yunrui, Existence result for a singular nonlinear boundary value problem at resonance, Nonlinear Analysis: TMA 68(3),2008, 671-680.
[112] Ruyun Ma, Huili Ma, Unbounded perturbations of nonlinear discrete periodic problem at resonance, Nonlinear Analysis: TMA.
[111] Ruyun Ma, Huili Ma, Existence of Sign-Changing Periodic Solutions of Second Order Difference Equations, Applied Mathematics and Computation 203(2), 2008, 463-470.
[110] Ruyun Ma, Bevan Thompson, Nodal Solutions for a Nonlinear Fourth-Order Eigenvalue Problem, Acta Mathematica Sinic, English Series 24(1), 2008, 27–34.
[109] Yulian An, Ruyun Ma, Global Behavior of the Components for the Second Order m-Point Boundary Value Problems, Boundary Value Problems,Volume 2008, Article ID 254593, 10 pages.
[108] Ruyun Ma, Hua Luo, Chenghua Gao, On Nonresonance Problems of Second-Order Difference Systems, Advances in Difference Equations,2008, Article ID 469815, 10 pages.
[107] Ruyun Ma, Donal O’Regan, Asymptotic nonuniform nonresonance conditions for a nonlinear discrete boundary value problem. Dynamic Systems and Applications 17 (2008) 271-282.
[106] Ruyun Ma, Chenghua Gao, Sign-Changing Solutions of Nonlinear Boundary Value Problems of Difference Equations, Indian Journal for Pure and Applied Mathematics.
[105] Ruyun Ma, Chenghua Gao, Existence and multiple solutions for nonlinear second-order discrete problems with minimum and maximum, Advances in Difference Equations,2008, Article ID 586020, 16 pages.
[104] Ruyun Ma, Bifurcation from Infinity and Multiple Solutions for Some Discrete Sturm-Liouville Problems, Comput Math Appl., 54(4)August 2007, 535-543.
[103] Ruyun Ma, Nodal Solutions for Singular Nonlinear Eigenvalue Problems,Nonlinear Analysis, 66(2007), 1417-1427.
[102] Ruyun Ma, Nodal Solutions of Second-Order Boundary Value Problems with Superlinear or Sublinear Nonlinearities, Nonlinear Analysis, 66(4) (2007), 950-961.
[101] Ruyun Ma, Yunrui Yang, Existence result for a singular nonlinear boundary value problem at resonance, Nonlinear Analysis TMA 68(3), 2008, 671-680.
[100] Ruyun Ma, Nonlinear discrete Sturm-Liouville problems at resonance, Nonlinear Analysis: TMA 67(11) 2007, 3050-3057.
[99] Ruyun Ma, Positive solutions for boundary value problems of functional differential equations, Applied Mathematics and Computation, 193(1), 2007, 66-72.
[98] Michal Fe?kan, Ruyun Ma, B. Thompson,Forced Symmetric Oscillations,Bull. Belg. Math. Soc. Simon Stevin 14(1) (2007), 73--85.
[97] Michal Fe?kan, Ruyun Ma, B. Thompson, Weakly coupled oscillators and topological degree,Bulletin des Sciences Mathématiques,131(6), 2007, 559-571.
[96] Ruyun Ma, A survey on nonlocal boundary value problems, Appl. Math. E-Notes, 7(2007), 257-279.
[95] Ruyun Ma, Nodal solutions for a fourth-order two-point boundary value problem,J. Math. Anal. Appl., 314(1), 2006, 254-265.
[94] Ruyun Ma, Nodal Solutions for a Second-Order m-Point Boundary Value Problem, Czechoslovak Mathematical Journal 56(4), 2006, 1243-1263.
[93] Ma Ruyun, D. O’Regan, Nodal solutions for second-order m-point boundary value problems with nonlinearities across several eigenvalues, Nonlinear Analysis, 64(7), 2006, 1562-1577.
[92] Ruyun Ma, D. O’Regan, Positive solutions of singular sublinear second-order three-point boundary value problems, Fixed Point Theory,7 (1)(2006), 65-81.
[91] Douglas R. Anderson, Ruyun Ma, Second-order n-point eigenvalue problems on time scales, Adv. Difference Equ., 2006, Art. ID 59572, 17 pp.
[90] Ruyun Ma, Nodal solutions for a fourth-order two-point boundary value problem. J. Math. Anal. Appl. 314(1) (2006), 254-265.
[89] Ruyun Ma, Nodal Solutions of Boundary Value Problems of Fourth-Order Ordinary Differential Equations, J. Math. Anal. Appl., 319(2), 2006, 424-434.
[88] Hua Luo, Ruyun Ma, Nodal solutions to nonlinear eigenvalue problems on time scales, Nonlinear Anal. 65(4) (2006), 773--784.
[87] Lynn Erbe, Ruyun Ma, C. C. Tisdell, On two point boundary value problems for second order differential inclusions, Dynam. Systems Appl. 15(1) (2006), 79--88.
[86] Ruyun Ma, Multiplicity results for an m-point boundary value problem at resonance, Indian Journal of Mathematics, 47(1), 2005, 15-31.
[85] Ruyun Ma, Existence of positive solutions of a fourth-order boundary value problem, Applied Mathematics and Computation 168/2, 2005, 1219-1231.
[84] Ruyun Ma, Yulian An, Uniqueness of Positive Solutions of a Class of O.D.E. with Robin Boundary Conditions, Nonlinear Analysis 63(2),2005, 273-281.
[83] Ruyun Ma, Bevan Thompson, Solvability of singular second order m- point boundary value problems of Dirichlet type, Bull. Austral. Math. Soc.71(2005), 41-52.
[82] Ruyun Ma, Bevan Thompson, A note on bifurcation from an interval, Nonlinear Analysis, 62(4), 2005, 743-749.
[81] Ruyun Ma, D. O’Regan, Solvability of singular second order m- point boundary value problems, J. Math. Anal. Appl., 301(2005), 124-134.
[80] Ruyun Ma, Bevan Thompson, Global behavior of positive solutions of nonlinear three-point boundary value problems, Nonlinear Analysis 60(4), 2005, 685-701.
[79] Ruyun Ma, Bevan Thompson, Multiplicity results for second-order two-point boundary value problems with nonlinearities across several eigenvalues, Appl. Math. Letters,18(2005) 587-595.
[78] Ruyun Ma, Bevan Thompson, Multiplicity Results for Second-Order Two-Point Boundary Value Problems with Superlinear or Sublinear Nonlinearities, J. Math. Anal. Appl., 303(2005),726-735.
[77] Dingyong Bai, Ruyun Ma, Existence of positive solutions to a singular boundary value problem with p-Laplacian operator. (Chinese), Acta Math. Sci. Ser. A,25(2)(2005), 166--170.
[76] Ruyun Ma, Christopher C. Tisdell, Positive Solutions of Singular Sublinear Fourth-Order Boundary Value Problems, Applicable Analysis, 84(12) 2005, 1199-1220.
[75] Ruyun Ma, Yulian An, Uniqueness of positive solutions of a class of ODE with nonlinear boundary conditions, Boundary Value Problems, 3(2005), 289-298.
[74] Bai Ding Yong , Ma Ru Yun, Existence of positive solutions to a singular boundary value problem with $p$-Laplacian operator. (Chinese), Acta Math. Sci. Ser. A Chin. Ed. 25（2）(2005), 166-170.
[73] 马如云, 专著《非线性常微分方程非局部问题》,科学出版社 2004.05 .
[72] Ruyun Ma, Multiple positive solutions for nonlinear m-point boundary value problems, Applied Mathematics and Computation,148 (2004), no. 1, 249-262.
[71] Ruyun Ma, Hua Luo, Existence of solutions for a two-point boundary value problem on time scales, Applied Mathematics and Computatio,150 (2004), no. 1, 139-147.
[70] Ruyun Ma, N. Castaneda, Existence of solutions of boundary value problems for second order functional differential equations, J. Math. Anal. Appl., 292 (2004), 49-59.
[69] Ruyun Ma, Existence results of a m-point boundary value problem at resonance, J. Math. Anal. Appl., 294(1) (2004), 147-157.
[68] Ruyun Ma, Positive solutions for nonhomogeneous $m$-point boundary value problems, Comput. Math. Appl., 47（4-5）(2004), 689--698.
[67] Ruyun Ma, Bevan Thompson, Positive solutions for nonlinear m-point eigenvalue problems, J. Math. Anal. Appl., 297(2004), 24-37.
[66] Ruyun Ma, Bevan Thompson, Nodal solutions for nonlinear eigenvalue problems, Nonlinear Analysis ,59(2004), 707-718.
[65] Ma Ruyun, Ma Qiaozhen, Positive solutions for semipositone $m$-point boundary-value problems. Acta Math. Sin. (Engl. Ser.), Acta Math. Sin. (Engl. Ser.) ,20 (2)(2004), 273-282..
[64] 马如云, Positive solutions for second-order $m$-point boundary value problems of Robin type. (Chinese), 数学物理学报, Ser. A 24(3) (2004), 307--318.
[63] 马如云, 宋灵宇, Positive solutions of an equation associated with an elastic beam with simply supported end-points. (Chinese) , 数学研究与评论, J. Math. Res. Exposition 24 (2)(2004), 317--320.
[62] An Yulian, Ma Ruyun, Uniqueness of positive solutions for a class of ODE's with Dirichlet boundary conditions, Electronic Journal of Differential Equations, 2004(142), 2004, 1-9.
[61] Bai Ding Yong , Ma Ru Yun, A boundary value problem for a singular second-order differential system. (Chinese), Acta Sci. Natur. Univ. Sunyatseni ,43（2）(2004), 129--132.
[60] Ma Ruyun, Existence of positive solution for second order boundary value problems on infinity intervals, Applied Math. Letters, 16(1)(2003), 33-39.
[59] Ruyun Ma, Lishun Ren,Positive solutions for nonlinear m-point boundary value problems of Dirichlet type via fixed point index theory, Applied Math. Letters, 16(6)(2003), 863-869.
[58] Ruyun Ma, Existence of positive solutions for superlinear semipositone $m$-point boundary-value problems, Proc. Edinburgh Math. Soc.,46 (2)(2003) 279-292.
[57] Ruyun Ma, Haiyan Wang, Positive solutions of nonlinear three-point boundary-value problems, J. Math. Anal. Appl.,279(1)2003, 216-227.
[56] Ruyun Ma, Multiplicity results for a three-point boundary value problem at resonance, Nonlinear Analysis, 53(6) (2003), 777-789.
[55] Ruyun Ma, Existence of positive solutions for a nonlinear fourth-order two-point, Boundary Value Problems, Ann. Polon. Math.,81(1)(2003), 79-84 .
[54] 马如云, 一类非线性m-点边值问题正解的存在性, 数学学报46(4),2003, 785-794.
[53] Ruyun Ma, Multiple positive solutions for a semipositone fourth-order boundary value problem, Hiroshima Mathematics Journal 33(2), 2003, 217-227.
[52] 姚庆六, 马如云, 关于非线性特征值问题的一个正解定理, 数学杂志23(1),2003，91-94
[51] 白定勇, 马如云, 一阶脉冲积分微分方程边值问题, 中山大学学报42（1） 3003，16-19.
[50] Ruyun Ma, Existence of positive solutions for second order three-point boundary value problems, Annales Polonici Mathematici, 79（3）(2002), 265-276.
[49] Ruyun Ma, Existence and uniqueness of solutions to first order three-point boundary value problems, Applied Math. Letters, 15(2) (2002)，211-216.
[48] Ruyun M, Daomin Cao, Positive solutions to an m-point boundary value problem, Appl. Math. J. Chinese Univ. Ser. B 17 (2002), 24--30.
[47] Ma Ruyun,Wu Hongping, Positive solutions of a fourth-order two-point boundary value problem, Acta Math. Sci. Ser. A Chin. Ed. 22 (2002), 244--249.
[46] Ma Ruyun, Yao Qingliu, Positive solutions of a semilinear elliptic equation with coefficient that changes sign ,Chinese Quarterly Journal of Mathematics,17(2002), 10-14.
[45] Ma Yu Hong, Ma Ruyun, Existence of positive solutions for sublinear semipositive boundary value problems , J. Math. Res. Exposition , 22 (2002), 621--625.
[44] Ruyun Ma, Positive solutions for a nonlinear m-point boundary value problem, Comput. Math. Appl. ,42 (2001), 755-765.
[43] Ruyun Ma, Positive solution for second order three-point boundary value problems, Appl. Math. Lett., 14(2001), 1-5.
[42] Ruyun Ma, Positive solutions for second order functional differential equations,Dynam. Systems Appl.,10 (2001), no. 2, 215--223.
[41] Ruyun Ma, N. Castaneda ,Existence of solutions of nonlinear m-point boundary-value problems, J. Math. Anal. Appl. 256 (2)(2001), 556--567.
[40] 马如云, 王汝发, 任立顺, Existence results for semi-positone boundary value problems, Acta Mathematica Scientia,21(B)(2) , 2001, 189-195.
[39] Ruyun Ma, Positive solutions for second order functional differential equations,Nonlinear Stud., 8 (2001), 239-247.
[38] Ruyun Ma, Positive solution for semipositone (n,n-k) boundary value problems, J. Math. Anal. Appl.,252, 2000, 220-229.
[37] Ruyun Ma, Multiple nonnegative solutions of second-order systems of boundary value problems, Nonlinear Anal. 42(6) (2000), Ser. A: Theory Methods, 1003-1010.
[36] Ruyun Ma, Bifurcation from infinity and multiple solutions for periodic boundary value problems, Nonlinear Anal. 42(1) (2000), no. 1, Ser. A: Theory Methods, 27-39.
[35] Ruyun Ma, Multiplicity of positive solutions for second-order three-point boundary value problems, Comput. Math. Appl. 40 (2000), no. 2-3, 193-204.
[34] Nelson Castaneda, Ruyun Ma, Positive solutions to a second order three-point boundary value problem, Applicable Analysis, 76(3-4), 2000, 231—239.
[33] Ruyun Ma, Existence and uniqueness theorems for some fourth-order nonlinear boundary value problems, International J. Math. & Math.Sci. 23(11) (2000),783-788.
[32] Daomin Cao, Ruyun Ma, Positive Solutions to a Second Order m-Point Boundary Value Problem, Electronic J. Diff. Eqns. 2000(2000), 65,1-8.
[31] Ma Ruyun, Positive solutions of a nonlinear three-point boundary value problem, Electronic J. Diff. Eqns., 1999(1999),34, 1-8.
[30] 马如云, 非线性周期边值问题周期解的个数, 数学年刊20A(4), 1999.
[29] Ma Ruyun, Positive solutions of fourth-order two-point boundary value problems, Ann. of Diff. Eqs., 5:3(1999), 305-313.
[28] Ruyun Ma, Multiplicity results for a third order boundary value problem at resonance, NonlinearAnal.TMA27:7 1998.
[27] Zhang J., Ma Ruyun, Minimax inequalities of Ky Fan, Appl. Math. Lett.,11:6, 1998.
[26] 马如云, 奇异二阶边值问题的正解, 数学学报41(6),1998，1225-1230.
[25] Ruyun Ma, Existence theorems for a second order m-point boundary value problem, J. Math. Anal. Appl., 1997,211(2), 545–555.
[24] Ruyun Ma, Existence theorems for a second order three-point boundary value problem, J. Math. Anal. Appl., 1997,212(2), 430–442.
[23] Ruyun Ma, Jihui Zhang, Shenmao Fu, The method of lower and upper solutions for fourth-order boundary value problem, J. Math. Anal. Appl.,215(2),1997, 415–422.
[22] Shenmao Fu, Ma Ruyun, Existence of coexistence state of periodic competition diffusion system, Nonlinear Anal., TMA 28:7,1997 .
[21] Ruyun Ma, Solvability of a class of fourth-order two-point boundary value problems. (Chinese), Math. Appl.,10 (2)(1997), 60-62.
[20] Ruyun Ma, On a nonlinear fourth order elliptic problem, Applicable Analysis TMA 66(1-2), 1997,107-117.
[19] Ruyun Ma, Existence of positive radial solution for elliptic system, J. Math. Anal. Appl., 201,1996 .
[18] Ruyun Ma, On a conjecture concerning the multiplicity of positive solutions of elliptic problem, Nonlinear Anal. TMA 27:7,1996, 775–780 .
[17] Xu Deng Zhou, Ma Ru Yun, Boundary value problems at resonance for systems of nonlinear elliptic equations. (Chinese), J. Lanzhou Univ. Nat. Sci. 32(1) (1996), 15-17.
[16] 马如云, 伏升茂 , 李占存, 扭转映射的一个不动点定理, 数学研究与评论16(3) 1996.
[15] Ma Ruyun Wang H., On the existence of positive solutions of fourth order ODE, Applicable Analysis, 59(1-4) 1995, 225-231.
[14] 马如云, 一类四阶周期边值问题的可解性, 数学物理学报, 15(3) 1995.
[13] 马如云, 马勤生,一类四阶边值问题的多解结果, 应用数学和力学16(10)1995.
[12] 马如云, 一类Lazer--Meknna 吊桥型藕合方程的周期解, 工程数学学报12(2)，1995.
[11] 马如云, 滑动支撑弹性梁静态方程可解性, 纯粹数学与应用数学11:2，1995.
[10] 徐登洲, 马如云, 专著《线性微分方程的非线性扰动》,科学出版社,1994 年第一版.
[9] 马如云, 一类半线性两点边值共振问题可解性, 数学学报36(1),1993.
[8] 马如云, 半线性Duffing方程周期边值问题的可解性, 数学年刊14A(4),1993.
[7] 马如云, 弹性梁方程共振问题几个多解存在定理, 应用数学和力学14(2),1993.
[6] 马如云, A nonlinear two point boundary value problem at resonance, 科学通报37,1992.
[5] 徐登州, 姚庆六, 马如云, 一类椭圆共振问题的可解性, 高校应用数学学报6(1),1991.
[4] 徐登洲, 马如云, Bounded perturbation of second order ordinary differential equations.,数学进展19(2), 1990.
[3] 姚庆六, 马如云, 几类半线性椭圆共振问题, 数学研究与评论10(1)1990.
[2] 马如云, 传染病模型的非线性积分方程非零解的唯一性, 生物数学学报5:2,1990.
[1] 马如云, 传染病模型非线性积分方程正解的连通分支, 生物数学学报5:3,1990.
