Inhomogeneous NLS in negative Sobolev spaces via Fourier-Lebesgue and modulation spaces

Divyang G. Bhimani, Diksha Dhingra, Vijay Kumar Sohani

The purpose of this work is to provide a broader framework for analyzing the 1D mass-subcritical inhomogeneous nonlinear Schrödinger equation (INLS) \[iu_t + u_{xx} \pm |x|^{-b}|u|…