The Cauchy problem for the energy-critical inhomogeneous nonlinear Schr\"{o}dinger equation with inverse-square potential

TL;DR

This paper investigates the well-posedness, scattering, and blowup criteria for the energy-critical inhomogeneous nonlinear Schrödinger equation with inverse-square potential, extending understanding of solution behaviors under various conditions.

Contribution

It establishes local and global well-posedness, scattering, and blowup criteria for the equation, utilizing sharp inequalities and virial estimates, which are novel in this context.

Findings

Proved local and small data global well-posedness in H^1.

Derived sharp Hardy-Sobolev inequality for the equation.

Established blowup criteria in the focusing case.

Abstract

In this paper, we study the Cauchy problem for the energy-critical inhomogeneous nonlinear Schr\"{o}dinger equation with inverse-square potential \[iu_{t} +\Delta u-c|x|^{-2}u=\lambda|x|^{-b} |u|^{\sigma } u,\; u(0)=u_{0} \in H^{1},\;(t,x)\in \mathbb R\times\mathbb R^{d},\] where $d\ge3$, $\lambda=\pm1$, $0<b<2$, $\sigma=\frac{4-2b}{d-2}$ and $c>-c(d):=-\left(\frac{d-2}{2}\right)^{2}$. We first prove the local well-posedness as well as small data global well-posedness and scattering in $H^{1}$ for $c>-\frac{(d+2-2b)^{2}-4}{(d+2-2b)^{2}}c(d)$ and $0<b<\frac{4}{d}$, by using the contraction mapping principle based on the Strichartz estimates. Based on the local well-posedness result, we then establish the blowup criteria for solutions to the equation in the focusing case $\lambda=-1$. To this end, we derive the sharp Hardy-Sobolev inequality and virial estimates related to this equation.