摘要
研究了一类带有点源和非局部边界条件的多孔介质方程非负解的爆破现象.运用经典的上、下解方法,并通过比较原理,在不同的假设下,构造出了方程合适的上解或下解,得出了该方程解的整体存在性和在有限时间爆破的充分条件.
In this paper, the authors investigate the blowup properties of the non-negative solutions to a porous medium equation with localized source and nonlocal boundary condition. Using the classical super and sub solution method and the comparison principle and constructing the appropriate super or sub solu tions for the equation under different hypotheses, the sufficient conditions for the global existence and finite time blowup of the solution are obtained.
出处
《西南大学学报(自然科学版)》
CAS
CSCD
北大核心
2012年第12期110-113,共4页
Journal of Southwest University(Natural Science Edition)
基金
中央高校基金资助项目(CDJXS10100020)
关键词
点源
非局部边界
多孔介质
爆破
localized source
nonlocal boundary
porous medium
blowup