Stability of positive stationary solutions to a spatially heterogeneous cooperative system with cross-diffusion

Autor: Wan-Tong Li, Yu-Xia Wang, Jia-Fang Zhang
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Electronic Journal of Differential Equations, Vol 2012, Iss 223,, Pp 1-18 (2012)
Druh dokumentu: article
ISSN: 1072-6691
Popis: In the previous article [Y.-X. Wang and W.-T. Li, J. Differential Equations, 251 (2011) 1670-1695], the authors have shown that the set of positive stationary solutions of a cross-diffusive Lotka-Volterra cooperative system can form an unbounded fish-hook shaped branch $Gamma_p$. In the present paper, we will show some criteria for the stability of positive stationary solutions on $Gamma_p$. Our results assert that if $d_1/d_2$ is small enough, then unstable positive stationary solutions bifurcate from semitrivial solutions, the stability changes only at every turning point of $Gamma_p$ and no Hopf bifurcation occurs. While as $d_1/d_2$ becomes large, the stability has a drastic change when $mu
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