| [1] Agarwal R P, Regan D O. A note on existence of nonnegative solutions to singular semi-positone problems. Nonlinear Anal, 1999, 36(5): 615--622
[2] 程建纲. 二阶边值问题的正解. 数学学报, 2001, 44(3): 429--436
[3] Erbe L H, Mathsen R M. Positive solutions for singular nonlinear boundary value problems. Nonlinear Anal, 2001, 46(7): 979--986
[4] 刘嘉荃. 一类奇异二阶边值问题的正解. 曲阜师范大学学报, 2002, 28(4): 1--7
[5] 赵增勤. 非线性奇异微分方程边值问题的正解. 数学学报, 2000, 43(1): 179--188
[6] Erbe L H, Hu S C, Wang H Y. Multiple positive solutions of some boundary value problems. J Math Anal Appl, 1994, 184(3): 640--648
[7] Henderson J, Wang H Y. Positive solutions for nonlinear eigenvalue problems. J Math Anal Appl, 1997, 208: 252--259
[8] Lan K Q, Webb J R. Positive solutions of semilinear differential equations with singularities. J Differential Equations, 1998, 148(2): 407--421
[9] Ma R Y. Multiple positive solutions for nonlinear  -point boundary value problems. Appl Math Comput, 2004, 148: 249--262
[10] Ma R Y. Positive solutions for second-order m-point boundary value problems of Robin type. Acta Mathematiea Scientia, 2004, 24(3): 307--318
[11] Ma R Y, Thompson B. Positive solutions for nonlinear m-point eigenvalue problems. J Math Anal Appl, 2004, 297(1): 24--37
[12] Han G D, Wu Y. Nontrivial solutions for singular two-point boundary value problems with sign-changing nonlinear term. J Math Anal Appl, 2007, 325(2): 1327--1338
[13] Li F Y, Han G D. Existence of non-zero solutions to nonlinear Hammerstein integral equation. 山西大学学报, 2003, 26(4): 283--286
[14] Sun J X, Zhang G W. Nontrivial solutions of singular superlinear Sturn-Liouville problem. J Math Anal Appl, 2006, 313: 518--536
[15] Deimling K. Nonlinear Functional Analysis. Berlin: Springer-Verlag, 1985
[16] Guo D J, Lakshmikantham V. Nonlinear Problems in Abstract Cones. New York: Academic Press, 1988
[17] 郭大钧, 孙经先. 非线性积分方程. 济南:山东科技出版社, 1987
[18] Zhang X G, Liu L S. Positive solutions of fourth-order multi-point boundary value problems with bending term. Appl Math Comput, 2007, 194: 321--332
[19] Zhang X G. Eigenvalue of higher-order semipositone multi-point boundary value problems with derivatives. Appl Math Comput, 2008, 201: 361--370 |