Necessary and sufficient conditions for the existence of positive solution for singular boundary value problems on time scales.
New existence results of anti-periodic solutions of nonlinear impulsive functional differential equations
This paper is a continuation of Y. Liu, Anti-periodic solutions of nonlinear first order impulsive functional differential equations, Math. Slovaca 62 (2012), 695–720. By using Schaefer's fixed point theorem, new existence results on anti-periodic solutions of a class of nonlinear impulsive functional differential equations are established. The techniques to get the priori estimates of the possible solutions of the mentioned equations are different from those used in known papers. An example is...
New existence theorems of positive solutions for singular boundary value problems.
New fixed point theorems of mixed monotone operators and applications to singular boundary value problems on time scales.