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


Cauchy problem for a quasilinear parabolic equation with a source term and an inhomogeneous density
Authors:A V Martynenko  A F Tedeev
Institution:(1) Institute of Applied Mathematics and Mechanics, National Academy of Sciences of Ukraine, ul. R. Luxemburg 74, Donetsk, 83114, Ukraine
Abstract:
The following quasilinear parabolic equation with a source term and an inhomogeneous density is considered:
$\rho (x)\frac{{\partial u}}{{\partial t}} = div(u^{m - 1} \left| {Du} \right|^{\lambda - 1} Du) + u^p $
. The conditions on the parameters of the problem are found under which the solution to the Cauchy problem blows up in a finite time. A sharp universal (i.e., independent of the initial function) estimate of the solution near the blowup time is obtained.
Keywords:inhomogeneous density  degenerate parabolic equation  blowup regime
本文献已被 SpringerLink 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