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On the steady-state problem for the Volterra-Lotka competition model with diffusion. (English) Zbl 0644.92016

The paper concerns the system \[ (*)\quad -\Delta u=u[a-u-cv],\quad - \Delta v=v[d-eu-v] \] on a smooth bounded domain \(\Omega \subseteq {\mathbb{R}}^ N\) subject to zero boundary data. A componentwise positive solution to (*) represents a steady-state to a corresponding diffusive Volterra-Lotka model for two competing species in which both species survive. Consequently, questions of existence, uniqueness, dependence on the parameters a,c,d,e, and stability (when viewed as a steady-state to a parabolic problem) of such solutions are of considerable interest.
Reviewer: J.Schmeelk

MSC:

92D25 Population dynamics (general)
35J65 Nonlinear boundary value problems for linear elliptic equations
35B30 Dependence of solutions to PDEs on initial and/or boundary data and/or on parameters of PDEs
58E07 Variational problems in abstract bifurcation theory in infinite-dimensional spaces

Citations:

Zbl 0621.00005