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A compressible viscous-dispersive Euler system in one space dimension in the context of quantum hydrodynamics is considered. The dispersive term is due to quantum effects described through the Bohm potential and the viscosity term is of…

偏微分方程分析 · 数学 2023-03-10 Raffaele Folino , Ramón G. Plaza , Delyan Zhelyazov

In this paper we study existence and stability of shock profiles for a 1-D compressible Euler system in the context of Quantum Hydrodynamic models. The dispersive term is originated by the quantum effects described through the Bohm…

偏微分方程分析 · 数学 2019-04-24 Corrado Lattanzio , Pierangelo Marcati , Delyan Zhelyazov

In this paper we investigate spectral stability of traveling wave solutions to 1-$D$ quantum hydrodynamics system with nonlinear viscosity in the $(\rho,u)$, that is, density and velocity, variables. We derive a sufficient condition for the…

偏微分方程分析 · 数学 2021-03-19 Corrado Lattanzio , Delyan Zhelyazov

We study the spectrum of the linearization around standing wave profiles for two quantum hydrodynamics systems with linear and nonlinear viscosity. The essential spectrum for such profiles is stable; we investigate the point spectrum using…

混沌动力学 · 物理学 2024-06-06 Delyan Zhelyazov

Combining pointwise Green's function bounds obtained in a companion paper [MZ.2] with earlier, spectral stability results obtained in [HuZ], we establish nonlinear orbital stability of small amplitude viscous shock profiles for the class of…

偏微分方程分析 · 数学 2007-05-23 Corrado Mascia , Kevin Zumbrun

The system describing the dynamics of a compressible isentropic fluid exhibiting viscosity and internal capillarity in one space dimension and in Lagrangian coordinates, is considered. It is assumed that the viscosity and the capillarity…

偏微分方程分析 · 数学 2026-04-07 R. Folino , C. Lattanzio , R. G. Plaza

In this paper we perform the analysis of spectral properties of the linearized system around constant states and dispersive shock for a 1-D compressible Euler system with dissipation--dispersion terms. The dispersive term is originated by…

偏微分方程分析 · 数学 2019-04-23 Corrado Lattanzio , Pierangelo Marcati , Delyan Zhelyazov

In this paper we study existence of traveling waves for 1-D compressible Euler system with dispersion (which models quantum effects through the Bohm potential) and nonlinear viscosity in the context of quantum hydrodynamic models for…

偏微分方程分析 · 数学 2020-04-16 Corrado Lattanzio , Delyan Zhelyazov

Using a combination of Kawashima- and Goodman-type energy estimates, we establish spectral stability of general small-amplitude relaxation shocks of symmetric dissipative systems. This extends previous results obtained by Plaza and Zumbrun…

偏微分方程分析 · 数学 2019-07-25 Corrado Mascia , Kevin Zumbrun

We give the first proof of nonlinear stability for smooth shock profiles of second-order dissipative hyperbolic-hyperbolic systems under the assumption of spectral stability, showing stability of smooth small-amplitude profiles in…

偏微分方程分析 · 数学 2025-10-13 Matthias Sroczinski , Kevin Zumbrun

We studied the shock propagation and its stability with the causal dissipative hydrodynamics in 1+1 dimensional systems. We show that the presence of the usual viscosity is not enough to stabilize the solution. This problem is solved by…

高能物理 - 唯象学 · 物理学 2008-11-26 G. S. Denicol , T. Kodama , T. Koide , Ph. Mota

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, over the full parameter range of their existence, for both…

偏微分方程分析 · 数学 2018-10-04 Alim Sukhtayev , Zhao Yang , Kevin Zumbrun

By using an equivalent form of the uniform Lopatinski condition for 1-shocks, we prove that the stability condition found by the energy method in [A. Morando, Y. Trakhinin, P. Trebeschi, Structural stability of shock waves in 2D…

偏微分方程分析 · 数学 2021-02-18 Yuri Trakhinin

Extending to systems of hyperbolic--parabolic conservation laws results of Howard and Zumbrun for strictly parabolic systems, we show for viscous shock profiles of arbitrary amplitude and type that necessary spectral (Evans function)…

偏微分方程分析 · 数学 2007-05-23 Mohammadreza Raoofi , Kevin Zumbrun

Variety of statistically steady energy spectra in elastic wave turbulence have been reported in numerical simulations, experiments, and theoretical studies. Focusing on the energy levels of the system, we have performed direct numerical…

混沌动力学 · 物理学 2013-03-07 Naoto Yokoyama , Masanori Takaoka

Linear stability of a plane shock waves in ultrarelativistic anisotropic hydrodynamics is investigated. The properties of the amplitudes of perturbations of physical quantities are studied depending on the components of the wave vector of a…

核理论 · 物理学 2023-09-21 Aleksandr Kovalenko

We investigate existence and stability of viscoelastic shock profiles for a class of planar models including the incompressible shear case studied by Antman and Malek-Madani. We establish that the resulting equations fall into the class of…

偏微分方程分析 · 数学 2015-05-19 Blake Barker , Marta Lewicka , Kevin Zumbrun

Hydrodynamic systems for quantum fluids are systems for compressible fluid flows for which quantum effects are macroscopically relevant. We discuss how the presence of the dispersive tensor describing the quantum effects alters the acoustic…

偏微分方程分析 · 数学 2020-11-30 Paolo Antonelli , Lars Eric Hientzsch , Pierangelo Marcati

The driven, cylindrical, free interface between two miscible, Stokes fluids with high viscosity contrast have been shown to exhibit dispersive hydrodynamics. A hallmark feature of dispersive hydrodynamic media is the dispersive resolution…

斑图形成与孤子 · 物理学 2019-08-20 Dalton V. Anderson , Michelle D. Maiden , Mark A. Hoefer

We establish one-dimensional spectral stability of small amplitude viscous and relaxation shock profiles using Evans function techniques to perform a series of reductions and normal forms to reduce to the case of the scalar Burgers…

偏微分方程分析 · 数学 2007-05-23 Ramon Plaza , Kevin Zumbrun
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