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20102026
most citedLong-time asymptotic for the derivative nonlinear Schrödinger equation with decaying initial value

78 citations · 365 across the 100 of their papers we have counts for

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math-ph2026

Painlevé XXXIV Asymptotics for the Focusing mKdV Equation with Finite-Genus Background and Discrete Spectrum

Ruihong Ma, Engui Fan

We investigate the Cauchy problem for the focusing modified Korteweg--de Vries (mKdV) equation with finite-genus algebro-geometric quasi-periodic initial data. By applying the nonl…

math-ph2026

Painlevé Asymptotics of the Focusing Nonlinear Schrödinger Equation with a Finite-Genus Algebro-Geometric Background

Ruihong ma, Engui Fan

We investigate the Cauchy problem for the focusing nonlinear Schrödinger (NLS) equation \begin{equation} iq_t(x,t)+q_{xx}(x,t)+2|q(x,t)|^2q(x,t)=0,\quad x\in\mathbb{R},\quad t\ge0,…

math-ph2026

A dense focusing Ablowitz-Ladik soliton gas and its asymptotics

Meisen Chen, Engui Fan, Zhaoyu Wang +2

In this paper, we propose a soliton gas solution for the focusing Ablowitz-Ladik system. This solution is defined as the large N limit of the N-soliton solution, and arises from a…

math-ph2025

Soliton resolution, asymptotic stability and Painlevé transcendents in the combined Wadati-Konno-Ichikawa and short-pulse equation

Yidan Zhang, Engui Fan

In this paper, we develop a Riemann-Hilbert (RH) approach to the Cauchy problem for the combined Wadati-Konno-Ichikawa and short-pulse (WKI-SP) equation. The solution of the Cauchy…

math-ph2025

Riemann-Hilbert approach to the Algebro-Geometric solution of the modified Camassa-Holm equation with linear dispersion term

Engui Fan, Gaozhan Li, Yiling Yang

This paper aims at providing an exact algebro-geometric solution of the modified Camassa-Holm (mCH) equation derived from hyperelliptic curves in genus. To achieve this…

math-ph2024

Soliton Shielding of the focusing modified KdV equation

Ruihong Ma, Engui Fan

We consider soliton gas solutions of the modified Korteweg-de Vries (mKdV) equation, where the point spectrum of the condensate is located within a bounded domain in the upper half…

math-ph2024

A Riemann-Hilbert approach to the two-component modified Camassa-Holm equation

Kai Xu, Luman Ju, Engui Fan

In this paper, we develop a Riemann-Hilbert (RH) approach to the Cauchy problem for the two-component modified Camassa-Holm (2-mCH) equation based on its Lax pair. Further via a se…

math-ph2023

Soliton resolution and asymptotic stability of -loop-soliton solutions for the Ostrovsky-Vakhnenko equation

Ruihong Ma, Engui Fan

The Ostrovsky-Vakhnenko (OV) equation \begin{align*} &u_{txx}-3κu_x+3u_xu_{xx}+uu_{xxx}=0 \end{align*} is a short wave model of the well-known Degasperis-Procesi equation and admit…

math-ph2023

The Painlevé-type asymptotics of defocusing complex mKdV equation with finite density initial data

Lili Wen, Engui Fan

We consider the Cauchy problem for the defocusing complex mKdV equation with finite density initial data \begin{align*} &q_t+\frac{1}{2}q_{xxx}-3|q|^2q_{x}=0,\\ &q(x,0)=q_{0}(x) \s…

math-ph2023

Painlevé transcendents in the defocusing mKdV equation with non-zero boundary conditions

Zhaoyu Wang, Taiyang Xu, Engui Fan

We consider the Cauchy problem for the defocusing modified Korteweg-de Vries (mKdV) equation with non-zero boundary conditions \begin{align} &q_t(x,t)-6q^2(x,t)q_{x}(x,t)+q_{xxx}(x…

math-ph2022

Soliton resolution and asymptotic stability of -solitons to the Degasperis-Procesi equation on the line

Xuan Zhou, Zhaoyu Wang, Engui Fan

The Degasperis-Procesi (DP) equation \begin{align} &u_t-u_{txx}+3κu_x+4uu_x=3u_x u_{xx}+uu_{xxx}, \nonumber \end{align} serving as a model delineating the propagation of shallow wa…

math-ph2022

The defocusing NLS equation with nonzero background: Painlevé asymptotics in two transition regions

Zhaoyu Wang, Engui Fan

In this paper, we address the Painlevé aymptotics in the transition region to the Cauchy problem of the defocusing Schrding…

math-ph2022★ 13 cited

Large-time asymptotics to the focusing nonlocal modified Kortweg-de Vries equation with step-like boundary conditions

Taiyang Xu, Engui Fan

We investigate the large-time asymptotics of solution for the Cauchy problem of the nonlocal focusing modified Kortweg-de Vries (MKdV) equation with step-like initial data, i.e., $…

math-ph2022★ 6 cited

Painleve-type asymptotics for the defocusing Hirota equation in transition region

Weikang Xun, Luman Ju, Engui Fan

We consider the Cauchy problem for the classical Hirota equation on the line with decaying initial data. Based on the spectral analysis of the Lax pair of the Hirota equation, we f…

math-ph2021

Long-time asymptotic behavior for the Novikov equation in solitonic regions of space time

Yiling Yang, Engui Fan

In this paper, we study the long time asymptotic behavior for the Cauchy problem of the Novikov equation with matrix spectral problem \begin{align} &u_{t}-u_{txx}+4 u_{…

math-ph2018★ 26 cited

Asymptotic Gap Probability Distributions of the Gaussian Unitary Ensembles and Jacobi Unitary Ensembles

Shulin Lyu, Yang Chen, Engui Fan

In this paper, we address a class of problems in unitary ensembles. Specifically, we study the probability that a gap symmetric about 0, i.e. is found in the Gaussian unit…

math-ph2017★ 1 cited

Long-time asymptotic behavior for the complex short pulse equation

Jian Xu, Engui Fan

In this paper, we consider the initial value problem for the complex short pulse equation with a Wadati-Konno-Ichikawa type Lax pair. We show that the solution to the initial value…

math-ph2017

Critical edge behavior in the perturbed Laguerre ensemble and the Painleve V transcendent

Min Chen, Yang Chen, Engui Fan

In this paper, we consider the perturbed Laguerre unitary ensemble described by the weight function of with The Deif…

math-ph2015

Large n-limit for Random matrices with External Source with 3 eigenvalues

Jian Xu, Engui Fan, Yang Chen

In this paper, we analyze the large n-limit for random matrix with external source with three distinct eigenvalues. And we confine ourselves in the Hermite case and the three disti…

math-ph2014★ 18 cited

Similarity reductions and new nonlinear exact solutions for the 2D incompressible Euler equations

Engui Fan, Manwai Yuen

For the 2D and 3D Euler equations, their existing exact solutions are often in linear form with respect to variables x,y,z. In this paper, the Clarkson-Kruskal reduction method is…