In this paper,we consider a time periodic non-monotone and nonlocal delayed reaction-diffusion population model with stage structure.We establish the existe
The study of dynamic equations on time scales provides a unified analysis of different types of dynamic equations such as differential equations and differe
We study a type of polynomial Li(e)nard system of degree m with polynomial perturbations of degree n.We prove that such systems can have at most n+1-([ n+1/