activity
20192026
most citedMultilinear Weighted Estimates and Quantum Zakharov System

3 citations · 4 across the 8 of their papers we have counts for

collaborators

9 papers

math.AP2026

Long-time continuum limits for twisted Schrödinger lattices

Brian Choi

We prove polynomial-in-time Sobolev bounds on the approximation error between the twisted discrete nonlinear Schrödinger equation and its magnetic continuum limit. The analysis exp…

math.AP2023

Speed of propagation of fractional dispersive waves

Brian Choi, Steven Walton

In this paper, we show that all non-trivial solutions of a broad class of nonlinear dispersive equations, whose linear evolution is governed by a dispersion relation under minimal…

math.AP2022★ 1 cited

Continuum Limit of 2D Fractional Nonlinear Schrödinger Equation

Brian Choi, Alejandro Aceves

We prove that the solutions to the discrete Nonlinear Schrödinger Equation (DNLSE) with non-local algebraically-decaying coupling converge strongly in to those…

math.AP2021

Well-posedness of the mixed-Fractional Nonlinear Schrödinger Equation on

Brian Choi, Alejandro Aceves

We investigate the well-posedness theory of the 2-D fractional nonlinear Schrödinger equation (NLSE) with a mixed degree of derivatives. Motivated by models in optics and photonics…

math.AP2021

Existence of Strong Solution for the Complexified Non-linear Poisson Boltzmann Equation

Brian Choi, Jie Xu, Trevor Norton +2

We prove the existence and uniqueness of the complexified Nonlinear Poisson-Boltzmann Equation (nPBE) in a bounded domain in . The nPBE is a model equation in nonline…

math.AP2020★ 3 cited

Multilinear Weighted Estimates and Quantum Zakharov System

Brian J Choi

We consider the compact case of one-dimensional quantum Zakharov system, as an initial-value problem with periodic boundary conditions. We apply the Bourgain norm method to show lo…

math.AP2019

Modified Strichartz Estimate of the Periodic Fourth Order NLS

Brian J. Choi

We prove modified Strichartz estimates on the one-dimensional torus, that are adapted to a fourth-order dispersion relation, and use them to show global well-posedness of nonlinear…

math.AP2019

Small Time Behavior and Summability for the Schrödinger Equation

Brian Choi

We consider the Carleson's problem regarding small time almost everywhere convergence to initial data for the Schrödinger equation, both linear and nonlinear on . It is…

math.AP2019

Remark on the Adiabatic Limit of Quantum Zakharov System

Brian Choi

This paper is concerned with the low regularity well-posedness of the adiabatic limit of the quantum Zakharov system, which is a modified nonlinear Schrödinger equation (NLSE). As…