Finite time blow up for solutions to a degenerate drift-diffusion equation for a fast diffusion case
Finite time blow up for solutions to a degenerate drift-diffusion equation for a fast diffusion case
复制标题
快速扩散情况下简并漂移扩散方程解的有限时间爆炸
DOI:
10.1088/1361-6544/ab0069
复制
发表时间:
2019
期刊:
影响因子:
1.7
通讯作者:
Takayoshi Ogawa
中科院分区:
文献类型:
--
作者:
Masaki Kurokiba;Takayoshi Ogawa
We consider the non-existence of a time global solution to the Cauchy problem of a degenerate drift-diffusion system with a fast-diffusion exponent. We show that the solution for fast-diffusion cases with the diffusion exponent blows up in a finite time if the initial data satisfy certain conditions involving the free energy. We also show the finite-time blow-up for the radially symmetric case without a finite moment condition.