activity
20102026
most citedSpreading speeds of KPP-type lattice systems in heterogeneous media

15 citations · 25 across the 16 of their papers we have counts for

collaborators

18 papers

math.AP2026

Variational Principles and Rearrangement Inequalities for asymmetric Operators on Periodic Lattices

Xing Liang

In this paper, we establish variational formulas and a rearrangement inequality for principal eigenvalues of asymmetric second-order difference operators on periodic lattices. For…

math.AP2026

On advective nonlocal operators: multiplicity of principal eigenpairs

Arnaud Ducrot, Quentin Griette, Xing Liang

We study the existence and multiplicity of principal eigenvalues and eigenfunctions for a periodically heterogeneous nonlocal dispersal model with advection. The operator we consid…

math.AP2026

Spreading speeds for Fisher-KPP equations with slowly decaying initial data in an almost periodic setting

Xing Liang, Linfeng Xu, Tao Zhou

This paper investigates the long-times behavior of the Fisher-KPP equation with slowly decaying initial data in an almost periodic medium. We mainly focus on two classes of initial…

math.AP2025

Generalized principal eigenvalues of elliptic operators and spreading speeds of Fisher-KPP equations in two-scale almost periodic media

Xing Liang, Linfeng Xu, Tao Zhou

This paper is concerned with the asymptotic behavior of the generalized principal eigenvalues of elliptic operators and spreading speeds of Fisher-KPP equations in two-scale almost…

math.AP2024

The influence of advection on the propagation phenomena of reaction-diffusion equations with KPP-bistable nonlinearity

Xing Liang, Lei Zhang, Mingmin Zhang

This paper is devoted to propagation phenomena for a reaction-diffusion-advection equation in a one-dimensional heterogeneous environment, where heterogeneity is reflected by the n…

math.AP2022★ 1 cited

Bistable pulsating fronts in slowly oscillating environments *

Weiwei Ding, François Hamel, Xing Liang

We consider reaction-diffusion fronts in spatially periodic bistable media with large periods. Whereas the homogenization regime associated with small periods had been well studied…

math.DS2022★ 1 cited

Almost-periodic ground state of the non-self-adjoint Jacobi operator and its applications

Xing Liang, Honngze Wang, Qi Zhou

We study the ground states of the one-dimensional non-self-adjoint Jacobi operators in the almost periodic media by using the method of dynamical systems. We show the existence of…

math.AP2021

Traveling fronts for Fisher-KPP lattice equations in almost periodic media

Xing Liang, Hongze Wang, Qi Zhou +1

This paper investigates the existence of almost periodic traveling fronts for Fisher-KPP lattice equations in one-dimensional almost periodic media. By the Lyapunov exponent of the…

math.AP2018★ 15 cited

Spreading speeds of KPP-type lattice systems in heterogeneous media

Xing Liang, Tao Zhou

In this paper, we investigate spreading properties of the solutions of the Kolmogorov-Petrovsky-Piskunov-type, (to be simple,KPP-type) lattice system \begin{equation}\label{firsteq…

math.AP2018

Transition semi-wave solutions of reaction diffusion equations with free boundaries

Xing Liang, Tao Zhou

In this paper, we define the transition semi-wave solution of the following reaction diffusion equation with free boundaries \begin{equation}\label{0.1} \left\{ \begin{aligned} u_{…

math.AP2018

Spreading speeds of nonlocal KPP equations in heterogeneous media

Xing Liang, Tao Zhou

In this paper, we prove the existence of the spreading speed of nonlocal KPP equations in two cases: 1. The media is almost periodic and the kernel of diffusion is continuous; 2. T…

math.AP2016★ 1 cited

Semi-Wave Solutions of KPP-Fisher Equations with Free Boundaries in Spatially Almost Periodic Media

Xing Liang

In this paper we prove the existence and uniqueness of the almost periodic semi- wave (traveling wave) solutions of KPP-Fisher equations with free boundaries in spatially almost pe…

math.AP2016★ 2 cited

Spreading in space-time periodic media governed by a monostable equation with free boundaries, Part 1: Continuous initial functions

Weiwei Ding, Yihong Du, Xing Liang

We aim to classify the long-time behavior of the solution to a free boundary problem with monostable reaction term in space-time periodic media. Such a model may be used to describ…

math.AP2016★ 3 cited

Spreading in space-time periodic media governed by a monostable equation with free boundaries, Part 2: Spreading speed

Weiwei Ding, Yihong Du, Xing Liang

This is Part 2 of our work aimed at classifying the long-time behavior of the solution to a free boundary problem with monostable reaction term in space-time periodic media. In Par…

math.AP2015

Diffusive KPP Equations with Free Boundaries in Time Almost Periodic Environments: II. Spreading Speeds and Semi-Wave

Fang Li, Xing Liang, Wenxian Shen

In this series of papers, we investigate the spreading and vanishing dynamics of time almost periodic diffusive KPP equations with free boundaries. Such equations are used to chara…

math.DS2015

Diffusive KPP Equations with Free Boundaries in Time Almost Periodic Environments: I. Spreading and Vanishing Dichotomy

Fang Li, Xing Liang, Wenxian Shen

In this series of papers, we investigate the spreading and vanishing dynamics of time almost periodic diffusive KPP equations with free boundaries. Such equations are used to chara…

math.AP2010

A variational problem associated with the minimal speed of travelling waves for spatially periodic reaction-diffusion equations

Xing Liang, Xiaotao Lin, Hiroshi Matano

We consider the equation where is a nonnegative measure on that is periodic in In the case where is a smoot…

math.AP2010★ 2 cited

Maximizing the spreading speed of KPP fronts in two-dimensional stratified media

Xing Liang, Xiaotao Lin, Hiroshi Matano

We consider the equation , with monostable nonliearity, where is a nonnegative measure on that is periodic…