Edit Profile (opens in new tab) Kaufmann, Eric R. Co-Author Distance Author ID: kaufmann.eric-r Published as: Kaufmann, Eric R.; Kaufmann, E. R.; Kaufmann, Eric; Kaufmann, E. more...less External Links: MGP Documents Indexed: 47 Publications since 1993 Reviewing Activity: 93 Reviews Co-Authors: 13 Co-Authors with 31 Joint Publications 327 Co-Co-Authors all top 5 Co-Authors 16 single-authored 12 Kosmatov, Nickolai 10 Raffoul, Youssef Naim 5 Henderson, Johnny Lee 4 Eloe, Paul W. 1 Eggensperger, Martin 1 Jia, Mei 1 Karna, Basant K. 1 Liu, Xiping 1 Mboumi, E. 1 Nobles, Jason 1 Tisdell, Christopher C. 1 Whaley, Zach 1 Yao, Kouadio David all top 5 Serials 7 Electronic Journal of Differential Equations (EJDE) 6 Electronic Journal of Qualitative Theory of Differential Equations 5 Dynamic Systems and Applications 4 Journal of Difference Equations and Applications 3 Computers & Mathematics with Applications 3 Panamerican Mathematical Journal 3 Communications in Applied Analysis 2 Journal of Mathematical Analysis and Applications 2 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 2 Nonlinear Studies 1 Rocky Mountain Journal of Mathematics 1 Discrete and Continuous Dynamical Systems 1 Communications on Applied Nonlinear Analysis 1 Nonlinear Analysis. Real World Applications 1 Nonlinear Dynamics and Systems Theory 1 Advances in Difference Equations 1 African Diaspora Journal of Mathematics 1 Communications in Mathematical Analysis 1 International Journal of Difference Equations 1 Differential Equations and Applications all top 5 Fields 41 Ordinary differential equations (34-XX) 16 Difference and functional equations (39-XX) 15 Operator theory (47-XX) 1 Integral equations (45-XX) 1 Numerical analysis (65-XX) 1 Biology and other natural sciences (92-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 36 Publications have been cited 456 times in 403 Documents Cited by ▼ Year ▼ Periodic solutions for a neutral nonlinear dynamical equation on a time scale. Zbl 1096.34057 Kaufmann, Eric R.; Raffoul, Youssef N. 99 2006 Positive solutions of a boundary value problem for a nonlinear fractional differential equation. Zbl 1183.34007 Kaufmann, E.; Mboumi, E. 86 2008 Positive solutions of a three-point boundary-value problem on a time scale. Zbl 1047.34015 Kaufmann, Eric R. 34 2003 A multiplicity result for a boundary value problem with infinitely many singularities. Zbl 1011.34012 Kaufmann, Eric R.; Kosmatov, Nickolai 28 2002 A second-order boundary value problem with impulsive effects on an unbounded domain. Zbl 1159.34023 Kaufmann, Eric R.; Kosmatov, Nickolai; Raffoul, Youssef N. 21 2008 Periodicity and stability in neutral nonlinear dynamic equations with functional delay on a time scale. Zbl 1118.34058 Kaufmann, Eric R.; Raffoul, Youssef N. 17 2007 Positive solutions for a nonlinear functional dynamic equation on a time scale. Zbl 1090.34054 Kaufmann, Eric R.; Raffoul, Youssef N. 16 2005 Multiple solutions of a boundary value problem on an unbounded domain. Zbl 1108.34024 Eloe, Paul W.; Kaufmann, Eric R.; Tisdell, Christopher C. 14 2006 Multiple positive solutions for higher order boundary value problems. Zbl 0930.34010 Kaufmann, Eric R. 14 1998 Existence and nonexistence of positive solutions for a nonlinear fractional boundary value problem. Zbl 1192.34009 Kaufmann, Eric R. 12 2009 Elastic beam problem with higher order derivatives. Zbl 1135.34013 Kaufmann, Eric R.; Kosmatov, Nickolai 11 2007 Eigenvalue problems for a three-point boundary-value problem on a time scale. Zbl 1081.34023 Kaufmann, Eric R.; Raffoul, Youssef N. 10 2004 Existence and uniqueness of solutions for a second-order iterative boundary-value problem. Zbl 1397.34111 Kaufmann, Eric R. 10 2018 Multiple positive solutions for focal boundary value problems. Zbl 0887.34018 Henderson, Johnny; Kaufmann, Eric R. 9 1997 Multiple positive solutions for difference equations. Zbl 1005.39502 Eloe, Paul W.; Henderson, Johnny; Kaufmann, Eric R. 8 1998 Stability in neutral nonlinear dynamic equations on a time scale with functional delay. Zbl 1140.34430 Kaufmann, Eric R.; Raffoul, Youssef N. 8 2007 A nonlinear neutral periodic differential equation. Zbl 1200.34094 Kaufmann, Eric R. 8 2010 Impulsive dynamic equations on a time scale. Zbl 1184.34091 Kaufmann, Eric R.; Kosmatov, Nickolai; Raffoul, Youssef N. 7 2008 Impulsive periodic boundary value problems for dynamic equations on time scale. Zbl 1182.34114 Kaufmann, Eric R. 6 2009 Comparison of eigenvalues for eigenvalue problems of a right disfocal operator. Zbl 0851.47016 Kaufmann, Eric R. 5 1994 Discretization scheme in Volterra integro-differential equations that preserves stability and boundedness. Zbl 1108.65127 Kaufmann, Eric R.; Raffoul, Youssef N. 4 2006 A second-order singular boundary value problem. Zbl 1062.34016 Kaufmann, E. R.; Kosmatov, N. 4 2004 Focal boundary value problems for singular difference equations. Zbl 0933.39039 Henderson, J.; Kaufmann, E. R. 3 1998 The connection between boundedness and periodicity in nonlinear functional neutral dynamic equations on a time scale. Zbl 1221.34220 Kaufmann, Eric R.; Kosmatov, Nickolai; Raffoul, Youssef N. 3 2009 Multipoint boundary value problems with parameter for a system of difference equations. Zbl 0863.39005 Henderson, Johnny; Kaufmann, Eric R. 2 1995 A singular boundary value problem for a right disfocal linear differential operator. Zbl 0857.34029 Eloe, Paul W.; Kaufmann, Eric R. 2 1996 Comparison of eigenvalues for a fourth-order four-point boundary value problem. Zbl 1096.34063 Karna, Basant K.; Kaufmann, Eric R.; Nobles, Jason 2 2005 A singular three-point boundary value problem. Zbl 1102.34010 Kaufmann, Eric R.; Kosmatov, Nickolai 2 2005 Solution matching for a three-point boundary-value problem on a time scale. Zbl 1062.34010 Eggensperger, Martin; Kaufmann, Eric R.; Kosmatov, Nickolai 2 2004 A Kolmogorov predator-prey system on a time scale. Zbl 1310.34124 Kaufmann, Eric R. 2 2014 Existence of solutions for a nonlinear fractional order differential equation. Zbl 1195.34012 Kaufmann, Eric R.; Yao, Kouadio David 2 2009 A unique limiting Green’s function for a class of singular boundary value problems. Zbl 0806.39003 Eloe, P. W.; Kaufmann, E. R. 1 1994 Singular conjugate boundary value problems on a time scale. Zbl 1050.34018 Kaufmann, Eric R.; Kosmatov, Nickolai 1 2004 A fourth-order iterative boundary value problem with Lidstone boundary conditions. Zbl 1499.34339 Kaufmann, Eric R. 1 2022 Existence of solutions for a nonlinear second-order equation with periodic boundary conditions at resonance. Zbl 1343.34059 Kaufmann, Eric R. 1 2014 Positive periodic solutions in neutral dynamic equations on a time scale. Zbl 1219.34116 Kaufmann, E. R.; Kosmatov, N.; Raffoul, Y. N. 1 2011 A fourth-order iterative boundary value problem with Lidstone boundary conditions. Zbl 1499.34339 Kaufmann, Eric R. 1 2022 Existence and uniqueness of solutions for a second-order iterative boundary-value problem. Zbl 1397.34111 Kaufmann, Eric R. 10 2018 A Kolmogorov predator-prey system on a time scale. Zbl 1310.34124 Kaufmann, Eric R. 2 2014 Existence of solutions for a nonlinear second-order equation with periodic boundary conditions at resonance. Zbl 1343.34059 Kaufmann, Eric R. 1 2014 Positive periodic solutions in neutral dynamic equations on a time scale. Zbl 1219.34116 Kaufmann, E. R.; Kosmatov, N.; Raffoul, Y. N. 1 2011 A nonlinear neutral periodic differential equation. Zbl 1200.34094 Kaufmann, Eric R. 8 2010 Existence and nonexistence of positive solutions for a nonlinear fractional boundary value problem. Zbl 1192.34009 Kaufmann, Eric R. 12 2009 Impulsive periodic boundary value problems for dynamic equations on time scale. Zbl 1182.34114 Kaufmann, Eric R. 6 2009 The connection between boundedness and periodicity in nonlinear functional neutral dynamic equations on a time scale. Zbl 1221.34220 Kaufmann, Eric R.; Kosmatov, Nickolai; Raffoul, Youssef N. 3 2009 Existence of solutions for a nonlinear fractional order differential equation. Zbl 1195.34012 Kaufmann, Eric R.; Yao, Kouadio David 2 2009 Positive solutions of a boundary value problem for a nonlinear fractional differential equation. Zbl 1183.34007 Kaufmann, E.; Mboumi, E. 86 2008 A second-order boundary value problem with impulsive effects on an unbounded domain. Zbl 1159.34023 Kaufmann, Eric R.; Kosmatov, Nickolai; Raffoul, Youssef N. 21 2008 Impulsive dynamic equations on a time scale. Zbl 1184.34091 Kaufmann, Eric R.; Kosmatov, Nickolai; Raffoul, Youssef N. 7 2008 Periodicity and stability in neutral nonlinear dynamic equations with functional delay on a time scale. Zbl 1118.34058 Kaufmann, Eric R.; Raffoul, Youssef N. 17 2007 Elastic beam problem with higher order derivatives. Zbl 1135.34013 Kaufmann, Eric R.; Kosmatov, Nickolai 11 2007 Stability in neutral nonlinear dynamic equations on a time scale with functional delay. Zbl 1140.34430 Kaufmann, Eric R.; Raffoul, Youssef N. 8 2007 Periodic solutions for a neutral nonlinear dynamical equation on a time scale. Zbl 1096.34057 Kaufmann, Eric R.; Raffoul, Youssef N. 99 2006 Multiple solutions of a boundary value problem on an unbounded domain. Zbl 1108.34024 Eloe, Paul W.; Kaufmann, Eric R.; Tisdell, Christopher C. 14 2006 Discretization scheme in Volterra integro-differential equations that preserves stability and boundedness. Zbl 1108.65127 Kaufmann, Eric R.; Raffoul, Youssef N. 4 2006 Positive solutions for a nonlinear functional dynamic equation on a time scale. Zbl 1090.34054 Kaufmann, Eric R.; Raffoul, Youssef N. 16 2005 Comparison of eigenvalues for a fourth-order four-point boundary value problem. Zbl 1096.34063 Karna, Basant K.; Kaufmann, Eric R.; Nobles, Jason 2 2005 A singular three-point boundary value problem. Zbl 1102.34010 Kaufmann, Eric R.; Kosmatov, Nickolai 2 2005 Eigenvalue problems for a three-point boundary-value problem on a time scale. Zbl 1081.34023 Kaufmann, Eric R.; Raffoul, Youssef N. 10 2004 A second-order singular boundary value problem. Zbl 1062.34016 Kaufmann, E. R.; Kosmatov, N. 4 2004 Solution matching for a three-point boundary-value problem on a time scale. Zbl 1062.34010 Eggensperger, Martin; Kaufmann, Eric R.; Kosmatov, Nickolai 2 2004 Singular conjugate boundary value problems on a time scale. Zbl 1050.34018 Kaufmann, Eric R.; Kosmatov, Nickolai 1 2004 Positive solutions of a three-point boundary-value problem on a time scale. Zbl 1047.34015 Kaufmann, Eric R. 34 2003 A multiplicity result for a boundary value problem with infinitely many singularities. Zbl 1011.34012 Kaufmann, Eric R.; Kosmatov, Nickolai 28 2002 Multiple positive solutions for higher order boundary value problems. Zbl 0930.34010 Kaufmann, Eric R. 14 1998 Multiple positive solutions for difference equations. Zbl 1005.39502 Eloe, Paul W.; Henderson, Johnny; Kaufmann, Eric R. 8 1998 Focal boundary value problems for singular difference equations. Zbl 0933.39039 Henderson, J.; Kaufmann, E. R. 3 1998 Multiple positive solutions for focal boundary value problems. Zbl 0887.34018 Henderson, Johnny; Kaufmann, Eric R. 9 1997 A singular boundary value problem for a right disfocal linear differential operator. Zbl 0857.34029 Eloe, Paul W.; Kaufmann, Eric R. 2 1996 Multipoint boundary value problems with parameter for a system of difference equations. Zbl 0863.39005 Henderson, Johnny; Kaufmann, Eric R. 2 1995 Comparison of eigenvalues for eigenvalue problems of a right disfocal operator. Zbl 0851.47016 Kaufmann, Eric R. 5 1994 A unique limiting Green’s function for a class of singular boundary value problems. Zbl 0806.39003 Eloe, P. W.; Kaufmann, E. R. 1 1994 all cited Publications top 5 cited Publications all top 5 Cited by 464 Authors 28 Ardjouni, Abdelouaheb 22 Agarwal, Ravi P. 21 Djoudi, Ahcene 20 Li, Yongkun 15 Wang, Chao 14 Liu, Yuji 12 Su, Hua 11 Henderson, Johnny Lee 9 Kaufmann, Eric R. 9 Liang, Sihua 9 Ntouyas, Sotiris K. 9 Raffoul, Youssef Naim 9 Zhang, Jihui 8 Feng, Meiqiang 8 Kosmatov, Nickolai 8 O’Regan, Donal 8 Sang, Yanbin 7 Ge, Weigao 7 Khemis, Rabah 7 Prasad, Kapula Rajendra 7 Tariboon, Jessada 6 Adivar, Murat 6 Bouakkaz, Ahlème 6 Koyuncuoğlu, Halis Can 6 Sun, Hongrui 5 Anderson, Douglas Robert 5 Eloe, Paul W. 5 Jiang, Weihua 5 Li, Wan-Tong 5 Neugebauer, Jeffrey Thomas 4 Benchohra, Mouffak 4 Bouchelaghem, Faycal 4 Cetin, Erbil 4 He, Zhimin 4 Liu, Zhenjie 4 Ouyang, Zigen 4 Sitthiwirattham, Thanin 4 Song, Changxiu 4 Wei, Zhongli 4 Xu, Fuyi 3 Avery, Richard I. 3 Bai, Chuanzhi 3 Bohner, Martin J. 3 Chen, Haibo 3 El Abidine, Zagharide Zine 3 Goodrich, Christopher S. 3 Graef, John R. 3 Guan, Wen 3 Hu, Meng 3 Khan, Rahmat Ali 3 Krushna, Boddu Muralee Bala 3 Lian, Hairong 3 Liu, Lishan 3 Liu, Wenbin 3 Lu, Peifen 3 Mesquita, Jaqueline Godoy 3 Minhós, Feliz Manuel 3 Shah, Kamal 3 Tian, Yuansheng 3 Tikare, Sanket A. 3 Tisdell, Christopher C. 3 Wang, Minmin 3 Wang, Weibing 3 Wong, Patricia J. Y. 3 Yang, Bo 3 Yang, Li 3 Zhai, Chengbo 3 Zhou, Jianwen 2 Abbas, Syed 2 Aleksandrov, Aleksandr Yur’evich 2 Bachar, Imed 2 Belaid, Malik 2 Benmezaï, Abdelhamid 2 Boulares, Hamid 2 Chen, Huiwen 2 Chen, Shengping 2 Chen, Xiaoxing 2 Chhatria, Gokula Nanda 2 Chyan, Chuan Jen 2 Davis, John M. 2 Dogan, Abdulkadir 2 Du, Bo 2 Elkholy, Samah M. 2 Guo, Dajun 2 Guo, Weiwei 2 Guo, Yanping 2 Hamani, Samira 2 Heidarkhani, Shapour 2 Hong, Shihuang 2 Hu, Lianggen 2 Hu, Zhigang 2 Islam, Muhammad Nazmul 2 Ji, Jun 2 Ji, Yude 2 Khelil, Kamel Ali 2 Lawrence, Bonita A. 2 Li, Bing 2 Li, Peiluan 2 Li, Ping 2 Li, Yongxiang ...and 364 more Authors all top 5 Cited in 111 Serials 47 Advances in Difference Equations 27 Boundary Value Problems 23 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 21 Computers & Mathematics with Applications 18 Journal of Mathematical Analysis and Applications 14 Applied Mathematics and Computation 13 Discrete Dynamics in Nature and Society 12 Abstract and Applied Analysis 12 Journal of Applied Mathematics and Computing 11 Journal of Computational and Applied Mathematics 10 Journal of Difference Equations and Applications 9 Differential Equations and Dynamical Systems 8 Communications in Nonlinear Science and Numerical Simulation 7 Mathematical Methods in the Applied Sciences 6 Fractional Differential Calculus 5 Journal of Applied Mathematics 4 Results in Mathematics 4 Acta Applicandae Mathematicae 4 Journal of Inequalities and Applications 4 Journal of Function Spaces 3 Rocky Mountain Journal of Mathematics 3 Mathematische Nachrichten 3 Applied Mathematics Letters 3 Mathematical and Computer Modelling 3 Turkish Journal of Mathematics 3 Boletín de la Sociedad Matemática Mexicana. Third Series 3 Positivity 3 Fractional Calculus & Applied Analysis 3 Nonlinear Analysis. Real World Applications 3 Kragujevac Journal of Mathematics 3 Boletim da Sociedade Paranaense de Matemática. Terceira Série 3 Proyecciones 3 Differential Equations and Applications 3 Afrika Matematika 3 International Journal of Applied and Computational Mathematics 2 Journal of the Franklin Institute 2 Journal of Differential Equations 2 Quaestiones Mathematicae 2 Rendiconti del Circolo Matemàtico di Palermo. Serie II 2 Proceedings of the Indian Academy of Sciences. Mathematical Sciences 2 Electronic Journal of Differential Equations (EJDE) 2 Filomat 2 Discrete and Continuous Dynamical Systems 2 Arab Journal of Mathematical Sciences 2 Qualitative Theory of Dynamical Systems 2 International Journal of Nonlinear Sciences and Numerical Simulation 2 Analysis and Applications (Singapore) 2 Mediterranean Journal of Mathematics 2 Nonlinear Analysis. Hybrid Systems 2 Tbilisi Mathematical Journal 2 Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A: Matemáticas. RACSAM 2 Journal of Applied Analysis and Computation 2 Open Mathematics 2 AIMS Mathematics 2 Ural Mathematical Journal 1 Applicable Analysis 1 International Journal of Systems Science 1 Nonlinearity 1 Ukrainian Mathematical Journal 1 Chaos, Solitons and Fractals 1 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica 1 Annali di Matematica Pura ed Applicata. Serie Quarta 1 Czechoslovak Mathematical Journal 1 Glasgow Mathematical Journal 1 International Journal of Mathematics and Mathematical Sciences 1 Le Matematiche 1 Zeitschrift für Analysis und ihre Anwendungen 1 Chinese Annals of Mathematics. Series B 1 Bulletin of the Iranian Mathematical Society 1 Acta Mathematicae Applicatae Sinica. English Series 1 Computational Mechanics 1 Neural Networks 1 Numerical Algorithms 1 Automation and Remote Control 1 Linear Algebra and its Applications 1 Russian Mathematics 1 Tatra Mountains Mathematical Publications 1 Applicationes Mathematicae 1 Journal of Mathematical Sciences (New York) 1 Computational and Applied Mathematics 1 Georgian Mathematical Journal 1 Opuscula Mathematica 1 Mathematical Problems in Engineering 1 Honam Mathematical Journal 1 Novi Sad Journal of Mathematics 1 Acta Mathematica Sinica. English Series 1 Nonlinear Analysis. Modelling and Control 1 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 1 Analysis in Theory and Applications 1 Journal of Function Spaces and Applications 1 Cubo 1 Sarajevo Journal of Mathematics 1 Bulletin of the Institute of Mathematics. Academia Sinica. New Series 1 The Journal of Prime Research in Mathematics 1 Journal of Mathematical Inequalities 1 Transactions of National Academy of Sciences of Azerbaijan. Series of Physical-Technical and Mathematical Sciences 1 Asian-European Journal of Mathematics 1 Journal of Nonlinear Science and Applications 1 Acta Universitatis Sapientiae. Mathematica 1 Annals of Functional Analysis ...and 11 more Serials all top 5 Cited in 22 Fields 363 Ordinary differential equations (34-XX) 151 Operator theory (47-XX) 72 Difference and functional equations (39-XX) 40 Real functions (26-XX) 36 Biology and other natural sciences (92-XX) 19 Integral equations (45-XX) 12 Dynamical systems and ergodic theory (37-XX) 11 Partial differential equations (35-XX) 9 Abstract harmonic analysis (43-XX) 9 Global analysis, analysis on manifolds (58-XX) 7 Systems theory; control (93-XX) 6 Numerical analysis (65-XX) 3 Functional analysis (46-XX) 3 Calculus of variations and optimal control; optimization (49-XX) 3 Mechanics of deformable solids (74-XX) 2 Special functions (33-XX) 1 Combinatorics (05-XX) 1 Number theory (11-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Functions of a complex variable (30-XX) 1 Approximations and expansions (41-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) Citations by Year