Finite time extinction in nonlinear diffusion equations
Finite time extinction in nonlinear diffusion equations
复制标题
非线性扩散方程中的有限时间消光
DOI:
10.1016/s0893-9659(04)90126-7
复制
发表时间:
2004
期刊:
影响因子:
--
通讯作者:
R. Beardmore
中科院分区:
文献类型:
--
作者:
R. Laister;A. Peplow;R. Beardmore
We consider a class of degenerate diffusion equations where the nonlinearity is assumed to be singular (non-Lipschitz) at zero. It is shown that solutions with compactly supported initial data become identically zero in finite time. Such extinction follows by comparison with newly constructed finite travelling waves connecting two stable equilibria.