We consider the Cauchy problems for some nonlinear degenerate parabolic equations in ޒ N for nonzero bounded nonnegative initial data having compact support, and show that the set of peaks of the nonnegative solution consists of one point after a finite time.
Solutions to some nonlinear parabolic equations in pseudomeasure spaces
✍ Scribed by Changxing Miao; Baoquan Yuan
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 208 KB
- Volume
- 280
- Category
- Article
- ISSN
- 0025-584X
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✦ Synopsis
Abstract
In this paper we study the Cauchy problem in pseudomeasure spaces for some nonlinear parabolic equations including nonlinear heat equations, nonlinear hyper‐dissipative equations, generalized nonlinear Hamilton–Jacobi equations, nonlinear hyper‐dissipative equations with convective term and the Ginzburg–Landau equation with third‐order nonlinear growth. We prove the existence, uniqueness and asymptotic stability of the global‐in‐time solutions for small initial data in some pseudomeasure spaces. As a result, the existence and uniqueness of selfsimilar solutions to the equations are obtained. Furthermore, with the self‐similar solutions of the equations, the long time behavior of solutions to the problem are also discussed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
📜 SIMILAR VOLUMES
## Abstract This paper deals with the initial and boundary value problem for a singular nonlinear parabolic equation. The existence of solutions is established by parabolic regularization. Some properties of solutions, for instance localization and large time behaviour are also discussed. Copyright