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• 数学 •    下一篇

边界受控的非线性扩散方程的整体可解性

李 健1, 高文杰2, 刘琳琳3   

  1. 1. 吉林农业大学 信息技术学院, 长春 130118; 2. 吉林大学 数学研究所,长春 130012;3. 长春税务学院 应用数学系, 长春 130017
  • 收稿日期:2008-01-09 修回日期:1900-01-01 出版日期:2008-09-26 发布日期:2008-09-26
  • 通讯作者: 高文杰

Global Solvability of Nonlinear Diffusion Equations with Forcing at the Boundary

LI Jian1, GAO Wenjie2, LIU Linlin3   

  1. 1. Information Technology College, Jilin Agricultural University, Changchun 130118, China;2. Institute of Mathematics, Jilin University, Changchun 130012, China;3. Department of Applied Mathematica, Changchun Taxation College, Changchun 130017, China
  • Received:2008-01-09 Revised:1900-01-01 Online:2008-09-26 Published:2008-09-26
  • Contact: GAO Wenjie

摘要: 讨论具有一般形式的对流项、 扩散项、 边界流项以及反应项的一维牛顿渗流方程初边值问题非负解的整体存在性. 通过对含有解的Lr+1模的微分不等式进行估计, 应用极限解的方法证明了解的整体存在性.

关键词: 渗流方程, 边值问题, 整体可解性, 整体存在性, 弱解

Abstract: The present paper studied the global existence of nonnegative solutions of onedimensional Newtonian filtration equation with more general boundary fluxes term, reaction, diffusion and convection. The global existence of solutions for such problems was proved by means of a differential inequality involving the Lr+1norms of solutions and the limit solution method, coming to the conclusion that the nonnegative global solution exists.

Key words: filtration equation, boundary value problem, global solvability, global existence, weak solution

中图分类号: 

  • O175.8