Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4632809 | Applied Mathematics and Computation | 2010 | 7 Pages |
Abstract
This paper is concerned with the existence of three positive T-periodic solutions of the first order functional differential equations of the formxâ²(t)=a(t)x(t)-λb(t)f(t,x(h(t))),where a(t),b(t) and Ï(t) are positive T-periodic functions, and λ is a positive parameter. Leggett-Williams multiple fixed point theorem has been used to prove our results. Our results extend and improve some results in the literature.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Seshadev Padhi, Shilpee Srivastava, Smita Pati,