Global well-posedness and decay of solutions to the Cauchy problem of convective Cahn-Hilliard equation

Abstract

In this paper, we consider the global well-posedness and time-decay rates of solution to the Cauchy problem for 3D convective Cahn-Hilliard equation with double-well potential via a refined pure energy method. In particular, the optimal decay rates of the higher-order spatial derivatives of the solution are obtained, the ${\dot{H}}^{-s}$ ($0<s\le \frac{1}{2}$) negative Sobolev norms is shown to be preserved along time evolution and enhance the decay rates.

13pages, 0 figure. arXiv admin note: substantial text overlap with arXiv:1910.07904