Unconditional uniqueness of Hardy--Hénon parabolic equations on Herz spaces

Abstract

In this paper, we introduce the unconditional uniqueness of solutions in Herz spaces for the Hardy--Hénon parabolic equation, which is a semilinear heat equation with a power-type weight in the nonlinear term $|x|^γ|u|^{α-1}u$. It is expected that the power-type weight in the nonlinear term can be effectively handled within Herz spaces. In fact, our result in Herz spaces $\dot{K}^s_{q,r}({\mathbb R}^n)$ relaxes the endpoint case $q=α$ and the large interpolation exponent case $r\ge q$ compared to previous results.