Large time behavior of ODE type solutions to parabolic \begin{document}$ p $\end{document}-Laplacian type equations
Large time behavior of ODE type solutions to parabolic \begin{document}$ p $\end{document}-Laplacian type equations
复制标题
抛物线 egin{document}$ p $end{document}-拉普拉斯型方程的 ODE 型解的大时间行为
DOI:
10.3934/cpaa.2020199
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
R. Sato
中科院分区:
文献类型:
--
作者:
Junyong Eom;R. Sato
Let \begin{document}$ u $\end{document} be a solution to the Cauchy problem for a nonlinear diffusion equation \begin{document}$ \begin{equation*} \begin{cases} \partial_t u = \mathrm{div}\, (|\nabla u|^{p-2} \nabla u) + u^\alpha & \quad\mathrm{in}\quad{\bf R}^N\times(0, \infty), \\ u(x, 0) = \lambda+\varphi(x) & \quad\mathrm{in}\quad{\bf R}^N, \end{cases} \end{equation*} $\end{document} where \begin{document}$ N \ge 1 $\end{document} , \begin{document}$ 2N/(N+1) , \begin{document}$ \alpha \in (-\infty, 1) $\end{document} , \begin{document}$ \lambda>0 $\end{document} and \begin{document}$ \varphi\in BC({\bf R}^N)\, \cap\, L^1({\bf R}^N) $\end{document} with \begin{document}$ \varphi\geq0 $\end{document} in \begin{document}$ {\bf R}^{N} $\end{document} . Then the solution \begin{document}$ u $\end{document} behaves like a positive solution to ODE \begin{document}$ \zeta' = \zeta^\alpha $\end{document} in \begin{document}$ (0, \infty) $\end{document} . In this paper we show that the large time behavior of the solution \begin{document}$ u $\end{document} is described by a rescaled Barenblatt solution.