摘要
讨论了的非线性抛物问题,研究了整体解的存在性与非存在性,通过使用上下解技巧,得到了整体解存在的充分必要条件.
This article discussed the existence and nonexistence of global positive solutions to the nonlinear parabolic problem. By using the technique of upper and lower solutions, the necessary and sufficient conditions for the global existence of solution were obtained.
出处
《淮阴师范学院学报(自然科学版)》
CAS
2003年第4期274-280,共7页
Journal of Huaiyin Teachers College;Natural Science Edition
关键词
非线性抛物型方程
整体存在
爆破
quasi-linear parabolic equation
global existence
blow up