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

Abstract

In this paper we study the Cauchy problem for the energy-critical inhomogeneous nonlinear Schr\"odinger equation $i\partial_{t}u+\Delta u=\lambda|x|^{-\alpha}|u|^{\beta}u$ in $H^1$. The well-posedness theory in $H^1$ has been intensively studied in recent years, but the currently known approaches do not work for the critical case $\beta=(4-2\alpha)/(n-2)$. It is still an open problem. The main contribution of this paper is to develop the theory in this case.