activity
20182025
most citedSpectral Stability of Inviscid Roll Waves

25 citations · 60 across the 11 of their papers we have counts for

collaborators

12 papers

math.AP2025

Orbital stability of undercompressive viscous shock waves under perturbation

Zhao Yang, Kevin Zumbrun

By the use of a new vertical estimate introduced by the authors in the context of relaxation shocks for shallow water flow, we both simplify and extend the basic stab…

math.AP2023★ 1 cited

Multidimensional stability and transverse bifurcation of hydraulic shocks and roll waves in open channel flow

Zhao Yang, Kevin Zumbrun

We study by a combination of analytical and numerical methods multidimensional stability and transverse bifurcation of planar hydraulic shock and roll wave solutions of the invisci…

math.AP2023

Existence and stability of nonmonotone hydraulic shocks for the Saint Venant equations of inclined thin-film flow

Grégory Faye, L. Miguel Rodrigues, Zhao Yang +1

Extending work of Yang-Zumbrun for the hydrodynamically stable case of Froude number F < 2, we categorize completely the existence and convective stability of hydraulic shock profi…

math.AP2022

Convective-wave solutions of the Richard-Gavrilyuk model for inclined shallow water flow

L. Miguel Rodrigues, Zhao Yang, Kevin Zumbrun

We study for the Richard-Gavrilyuk model of inclined shallow water flow, an extension of the classical Saint Venant equations incorporating vorticity, the new feature of convective…

math.AP2021

Asymptotic stability of sharp fronts: Analysis and rigorous computation

Blake Barker, Jared C. Bronski, Vera Mikyoung Hur +1

We investigate the stability of traveling front solutions to nonlinear diffusive-dispersive equations of Burgers type, with a primary focus on the Korteweg-de Vries-Burgers (KdVB)…

math.AP2021

An alternative proof of modulation instability of Stokes waves in deep water

Zhao Yang

We generalize the periodic Evans function approach recently used to study the spectral stability of Stokes wave and gravity-capillary (including Wilton ripples) in water of finite…

math.AP2020★ 21 cited

Unstable Stokes waves

Vera Mikyoung Hur, Zhao Yang

We investigate the spectral instability of a periodic Stokes wave of sufficiently small amplitude, traveling in water of unit depth, under gravity. Numerical evidence sugges…

math.AP2020

Stability of strong detonation waves for Majda's model with general ignition functions

Soyeun Jung, Zhao Yang, Kevin Zumbrun

For strong detonation waves of the inviscid Majda model, spectral stability was established by Jung and Yao for waves with step-type ignition functions, by a proof based largely on…

math.AP2018

Spectral stability of hydraulic shock profiles

Alim Sukhtayev, Zhao Yang, Kevin Zumbrun

By reduction to a generalized Sturm Liouville problem, we establish spectral stability of hydraulic shock profiles of the Saint-Venant equations for inclined shallow-water flow, ov…

math.AP2018★ 11 cited

Stability of hydraulic shock profiles

Zhao Yang, Kevin Zumbrun

We establish nonlinear stability with sharp rates of decay in , , of general hydraulic shock profiles, with or without subshocks, of the invisci…

math.AP2018★ 25 cited

Spectral Stability of Inviscid Roll Waves

Mathew A. Johnson, Pascal Noble, L. Miguel Rodrigues +2

We carry out a systematic analytical and numerical study of spectral stability of discontinuous roll wave solutions of the inviscid Saint Venant equations, based on a periodic Evan…

math.AP2018★ 2 cited

Convergence as period goes to infinity of spectra of periodic traveling waves toward essential spectra of a homoclinic limit

Zhao Yang, Kevin Zumbrun

We revisit the analysis by R.A. Gardner of convergence of spectra of periodic traveling waves in the homoclinic, or infinite-period limit, extending his results to the case of esse…