Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4630784 | Applied Mathematics and Computation | 2011 | 10 Pages |
Abstract
By using the generalized continuation theorem, the existence of at least two positive periodic solutions for a non-autonomous delayed periodic predator–prey model with harvestingx′(t)=x(t)[r(t)-a(t)x(t)]-b(t)x(t)m+x(t)y(t)-h1(t),y′(t)=y(t)c(t)x(t-τ(t))m+x(t-τ(t))-d(t)-h2(t)is established. The method used here is more convenient than Mawhin’s continuation theorem. And the main results show that the harvesting terms consult in the additional periodic solution.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Lin-Lin Wang, Yong-Hong Fan,