Generation and propagation of interfaces in reaction-diffusion systems
Generation and propagation of interfaces in reaction-diffusion systems
复制标题
反应扩散系统中界面的生成和传播
DOI:
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发表时间:
1992
期刊:
影响因子:
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通讯作者:
Xinfu Chen
中科院分区:
文献类型:
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作者:
Xinfu Chen
This paper is concerned with the asymptotic behavior, as e0, of the solution (u e , υ e ) of the second initial-boundary value problem of the reaction-diffusion system: u t e − eΔu e = 1/e f(u e , υ e) ≡ 1/e [u e (1 − u e2 ) − υ e υ t e − Δυ e = u e − γυ e where γ > 0 is a constant. When υ ∈ (−2√3/9, 2√3/9), f is bistable in the sense that the ordinary differential equation u t = f(u, υ) has two stable solutions u = h − (υ) and u = h + (υ) and one unstable solution u = h 0 (υ), where h − (υ), h 0 (υ), and h + (υ) are three solutions of the algebraic equation f(u, υ) = 0