Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10427169 | Nonlinear Analysis: Theory, Methods & Applications | 2005 | 10 Pages |
Abstract
In this paper, by using the coincidence degree method, we obtain some sufficient conditions for the existence of multiple positive periodic solutions of a class of second-order differential equations under the existence of upper and lower solutions.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
Xiaojing Yang,