共 50 条
- [6] Sturm-Picone Type Theorems for Second Order Nonlinear Impulsive Differential Equations PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2016 (ICNAAM-2016), 2017, 1863
- [8] Levin's comparison theorems for nonlinear second order differential equations Appl Math Lett, 6 (29):