首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Null controllability of some nonlinear degenerate 1D parabolic equations
Authors:MM Cavalcanti  E Fernández-Cara  AL Ferreira
Institution:1. Department of Mathematics, State University of Maringá, Maringá 87020-900, PR, Brazil;2. Departamento de Ecuaciones Diferenciales y Análisis Numérico, University of Seville, Aptdo. 1160, Sevilla 41080, Spain;3. Department of Mathematics, State University of Londrina, Londrina 86.057-970, PR, Brazil
Abstract:The main goal of the present paper is twofold: (i) to establish the well-posedness of a class of nonlinear degenerate parabolic equations and (ii) to investigate the related null controllability and decay rate properties. In a previous step, we consider an appropriate regularized system, where a small parameter α is involved. More precisely, the usual nonlinear term b(x)uux is replaced by b(x)zux, where z=(Id.?α2A)?1u and A is a Poisson–Dirichlet operator. We investigate the behavior of the null controls and their associated states as α → 0.
Keywords:Corresponding author  
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号