TY - JOUR T1 - Self-similar Singular Solution of a P-Laplacian Evolution Equation with Gradient Absorption Term AU - Peihu Shi JO - Journal of Partial Differential Equations VL - 4 SP - 369 EP - 383 PY - 2004 DA - 2004/11 SN - 17 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5399.html KW - p-Laplacian evolution equation KW - gradient absorption KW - self-similar KW - singular solution KW - very singular solution AB -

In this paper we deal with the self-similar singular solution of the p-Laplacian evolution equation u_t = div(|∇|^{p-2}∇u) - |∇u|^q for p > 2 and q > 1 in R^n × (0, ∞). We prove that when p > q + n/(n + 1) there exist self-similar singular solutions, while p ≤ q+n/(n+1) there is no any self-similar singular solution. In case of existence, the self-similar singular solutions are the self-similar very singular solutions, which have compact support. Moreover, the interface relation is obtained.