期刊
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS
卷 30, 期 8, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0218127420300207
关键词
Diffusion; Hopf bifurcation; cross-diffusion; Turing instability; diffusive predator-prey system; pattern
资金
- NSF of China [41575004]
We are concerned with the Turing instability and pattern caused by cross-diffusion in a strongly coupled spatial predator-prey system. We explore how cross-diffusion destabilizes the spatially uniform steady state which is stable in reaction-diffusion systems, and explicitly describe the Turing space under certain conditions. Particularly, when the parameter values are taken in the Turing-Hopf domain, in which the spatiotemporal dynamical behavior is influenced by both Hopf and Turing instabilities, we investigate the formation of all possible patterns, including non-Turing structures such as wave pattern, competing dynamics as well as stationary Turing pattern. Furthermore, numerical simulations are illustrated to verify our theoretical findings.
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