| MA R Y, LU Y Q, CHEN T L. Existence of One-Signed Solutions of Discrete Second-Order Periodic Boundary Value Problems [J]. Abstract and Applied Analysis, 2012(12): 1-13. |
| 姚庆六.非线性变系数二阶Neumann边值问题的正解[J].山东大学学报(理学版), 2007, 42(12): 10-14, 18. |
| MA R Y. Nonlinear Periodic Boundary Value Problems with Sign-Changing Green's Function [J]. Nonlinear Analysis: Theory, Methods & Applications, 2011, 74(5): 1714-1720. |
| 闫东明.变系数二阶Neumann边值问题正解的存在性[J].高校应用数学学报A辑, 2013, 28(04): 477-487. |
| JIANG D Q, LIU H Z. Existence of Positive Solutions to Second Order Neumann Boundary Value Problem[J]. Journal of Mathematical Research And Exposition, 2000, 20(3): 360-364. |
| 梁盛泉, 杨和.二阶变系数常微分方程Neumann边值问题的正解[J].甘肃农业大学学报, 2010, 45(2): 152-155. |
| 路艳琼.一类二阶离散Neumann边值问题正解的存在性[J].纯粹数学与应用数学, 2010, 26(6): 1012-1020. |
| 路艳琼, 高承华.二阶变系数离散Neumann边值问题正解的存在性[J].华东师范大学学报(自然科学版), 2011(5): 66-72, 102. |
| KELLEY W G, PETERSON A C. Difference Equation an Introduction with Applications [M]. San Diego: Academic Press, 2001. |
| GUO D J, LAKSHMIKANTHAM V. Nonlinear Problems in Abstract Cones[M]. Amsterdam: Elsevier, 1988. |