Connecting orbits in scalar reaction diffusion equations
Connecting orbits in scalar reaction diffusion equations
复制标题
标量反应扩散方程中的连接轨道
DOI:
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发表时间:
1988
期刊:
影响因子:
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通讯作者:
B. Fiedler
中科院分区:
文献类型:
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作者:
P. Brunovský;B. Fiedler
We consider the flow of a one-dimensional reaction diffusion equation
$$ {u_t} = {u_{xx}} + f(u),x in (0,1)$$
(1.1)
with Dirichlet boundary conditions
$$ u(t,0) = u(t,1) = 0{ ext{ }}$$
(1.2)
Let v, w denote stationary, i.e. t-independent solutions. We say that v connects to w, if there exists an orbit u(t, x) of (1.1), (1.2) such that
$$ mathop {lim }limits_{t o - infty } ;uleft( {t, cdot }
ight) = upsilon ;mathop {lim }limits_{t o - infty } ;uleft( {t, cdot }
ight) = w$$
(1.3)
i.e. u(t, ·) is a heteroclinic orbit connecting v to w. In this report we address the following question: