activity
20202025
most citedLong-time asymptotic behavior of a mixed schrödinger equation with weighted Sobolev initial data

10 citations · 12 across the 6 of their papers we have counts for

collaborators

6 papers

math.AP2025

Existence of global solutions to the Fokas-Lenells equation with arbitrary spectral singularities

Yuan Li, Qiaoyuan Cheng, Engui Fan

We establish the global existence of solutions to the Fokas-Lenells equation for any initial data in a weighted Sobolev space .This resul…

math.AP2022★ 1 cited

The Fokas-Lenells equation on the line: Global well-posedness with solitons

Qiaoyuan Cheng, Engui Fan

In this paper, we prove the existence of global solutions in to the Fokas-Lenells (FL) equation on the line when the initial data includes…

math.AP2022

A Riemann-Hilbert approach to existence of global solutions to the Fokas-Lenells equation on the line

Qiaoyuan Cheng, Engui Fan

We obtain the the existence of global solutions to the Cauchy problem of the Fokas-Lenells (FL) equation on the line \begin{align} &u_{xt}+αβ^2u-2iαβu_x-αu_{xx}-iαβ^2|u|^2u_x=0,\no…

nlin.SI2021★ 1 cited

Long time asymptotic behavior for the derivative Schrödinger equation with nonzero boundary conditions

Yiling Yang, Qiaoyuan Cheng, Engui Fan

In this paper, we apply steepest descent method to study the Cauchy problem for the derivative nonlinear Schrödinger equation with nonzero boundary conditions \…

math.AP2020★ 10 cited

Long-time asymptotic behavior of a mixed schrödinger equation with weighted Sobolev initial data

Qiaoyuan Cheng, Yiling Yang, Engui Fan

We apply steepest descent method to obtain sharp asymptotics for a mixed schrödinger equation $$q…

math.AP2020

Long-time asymptotics for the focusing Fokas-Lenells equation in the solitonic region of space-time

Qiaoyuan Cheng, Engui Fan

We study the long-time asymptotic behavior of the focusing Fokas-Lenells (FL) equation $$ u_{xt}+αβ^2u-2iαβu_x-αu_{xx}-iαβ^2|u|^2u_x=0 \label{cs} $$ with generic initial data in a…