吉林大学学报(理学版) ›› 2019, Vol. 57 ›› Issue (06): 1400-1402.

• 数学 • 上一篇    下一篇

具非局部源半线性抛物方程变号解爆破时间的下界估计

孙爱慧1, 陈 鹏1, 李 岩1, 包开花2   

  1. 1. 吉林师范大学 数学学院, 吉林 四平 136000; 2. 内蒙古民族大学 数学学院, 内蒙古 通辽 028000
  • 收稿日期:2019-08-29 出版日期:2019-11-26 发布日期:2019-11-21
  • 通讯作者: 孙爱慧 E-mail:sunaihui2002@126.com

Estimation of Lower Bounds of  Blow-up Time for Variable Sign Solutions of Semilinear Parabolic Equations with Nonlocal Sources#br#

SUN Aihui1, CHEN Peng1, LI Yan1, BAO Kaihua2   

  1. 1. College of Mathematics, Jilin Normal University, Siping 136000, Jilin Province, China; 2. College of Mathematics,  Inner Mongolia University for Nationalities, Tongliao 028000,Inner Mongolia Autonomous Region, China
  • Received:2019-08-29 Online:2019-11-26 Published:2019-11-21
  • Contact: SUN Aihui E-mail:sunaihui2002@126.com

摘要: 考虑一类具非局部源半线性抛物方程Neuman边值问题解的爆破性质, 通过构造辅助函数并利用一阶微分不等式, 给出该方程解爆破时间的下界估计.

关键词: 非局部源, 半线性, 爆破时间, 下界

Abstract: We considered  the blow\|up properties of solutions of Neuman boundary value problems for  a class of semilinear parabolic equations with nonlocal sources. By constructing auxiliary  functions and  using  the first order differential inequality, we gave the estimation of  lower bound of  blow\|up time for  solutions of the  equations.

Key words: nonlocal source, semilinear, blow-up time, lower bound

中图分类号: 

  • O175.8