activity
20242026
collaborators

5 papers

math.AP2026

Lecture notes on non-elliptic Fredholm theory

Andrew Hassell, Qiuye Jia, Ethan Sussman

These are lecture notes from the Austral Winter School on Microlocal Analysis and Non-elliptic Fredholm Theory, held at the Australian National University, Canberra, June 30 -- Jul…

math.AP2026

The scattering map for the Schrodinger operator on curved spaces

Andrew Hassell, Qiuye Jia

Let be a Schrödinger operator with metric and potential perturbation that are compactly supported in spacetime . Here and $΅

math.AP2025

Microlocal analysis of the non-relativistic limit of the Klein--Gordon equation: Asymptotics

Andrew Hassell, Qiuye Jia, Ethan Sussman +1

This is the less technical half of a two-part work in which we introduce a robust microlocal framework for analyzing the non-relativistic limit of relativistic wave equations with…

math.AP2025

Microlocal analysis of the non-relativistic limit of the Klein--Gordon equation: Estimates

Andrew Hassell, Qiuye Jia, Ethan Sussman +1

This is the more technical half of a two-part work in which we introduce a robust microlocal framework for analyzing the non-relativistic limit of relativistic wave equations with…

math.AP2024

The final state problem for the nonlinear Schrodinger equation in dimensions 1, 2 and 3

Andrew Hassell, Qiuye Jia

In this article we consider the defocusing nonlinear Schrödinger equation, with time-dependent potential, in space dimensions and , with nonlinearity , $p…