Solution to nonlinear parabolic equations related to P-Laplacian
Huashui Zhan
Chinese Annals of Mathematics, Series B ›› 2012, Vol. 33 ›› Issue (5) : 767 -782.
Consider the following Cauchy problem: \begin{gathered} u_t = div(|\nabla u^m |^{p - 2} \nabla u^m ),(x,t) \in S_T = \mathbb{R}^N \times (0,T), \hfill \\ u(x,0) = \mu ,x \in \mathbb{R}^N \hfill \\ \end{gathered} where 1 < p < 2, 1 < m < \tfrac{1}{{p - 1}}, and µ is a σ-finite measure in ℝ N. By the Moser’s iteration method, the existence of the weak solution is obtained, provided that \tfrac{{(m + 1)N}}{{mN + 1}} < p. In contrast, if \tfrac{{(m + 1)N}}{{mN + 1}} \geqslant p, there is no solution to the Cauchy problem with an initial value δ(x), where δ(x) is the classical Dirac function.
Nonlinear parabolic equation / Cauchy problem / Existence / σ-Finite measure
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