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燃烧理论中抛物方程组全局解的存在性和不存在性

孙秀燕

吉林大学学报(理学版)2017,Vol.55Issue(3):509-512,4.
吉林大学学报(理学版)2017,Vol.55Issue(3):509-512,4.DOI:10.13413/j.cnki.jdxblxb.2017.03.08

燃烧理论中抛物方程组全局解的存在性和不存在性

Existence and Non-existence of Global Solutions for Parabolic Systems from Combustion Theory

孙秀燕1

作者信息

  • 1. 通化市外国语学校 数学组,吉林 通化 134002
  • 折叠

摘要

Abstract

The author considered the properties of solutions of initial boundary value problems for quasilinear parabolic systems from combustion theory,and obtained sufficient conditions for the existence and non-existence of global solutions by using energy estimation method,Jensen inequality and Gronwall inequality.The results show that there is a global non negative solution to the problem if the parameter m in the equation is odd and the initial value satisfies appropriate integrability conditions;and the solution of the problem will blow up at a finite time if m is even and the integral of the initial value is suitably large.

关键词

抛物方程组/燃烧理论/全局有界性/爆破

Key words

parabolic system/combustion theory/global boundedness/blowup

分类

数理科学

引用本文复制引用

孙秀燕..燃烧理论中抛物方程组全局解的存在性和不存在性[J].吉林大学学报(理学版),2017,55(3):509-512,4.

基金项目

吉林省科技厅项目(批准号:20150201058NY). (批准号:20150201058NY)

吉林大学学报(理学版)

OA北大核心CSCDCSTPCD

1671-5489

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