This paper deals with the existence and nonexistence of nonconstant positive steady-state solutions to a ratio-dependent predator-prey model with diffusion and with the homogeneous Neumann boundary condition. We demonstrate that there exists a 0 (b) satisfying 0 < a 0 (b) < m 1 for 0 < b < m 1 , suc
Coexistence problem for a prey–predator model with density-dependent diffusion
✍ Scribed by Kousuke Kuto; Yoshio Yamada
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 346 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0362-546X
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✦ Synopsis
We study a prey-predator model with nonlinear diffusions. In a case when the spatial dimension is less than 5, a universal bound for coexistence steady-states is found. By using the bound and the bifurcation theory, we obtain the bounded continuum of coexistence steady-states.
📜 SIMILAR VOLUMES
A ratio-dependent predator-prey model with time lag for predator is proposed and analyzed. Mathematical analyses of the model equations with regard to boundedness of solutions, nature of equilibria, permanence, and stability are analyzed. We note that for a ratio-dependent system local asymptotic st