Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4976319 | Journal of the Franklin Institute | 2009 | 12 Pages |
Abstract
In this paper, we use Leggett-Williams multiple fixed point theorem to obtain different sufficient conditions for the existence of at least three nonnegative periodic solutions of the first order functional differential equation of the formyâ²(t)=-a(t)y(t)+λf(t,y(h(t))).Some applications to mathematical ecological models are given.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Seshadev Padhi, Shilpee Srivastava,