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We perform a linear and entropy stability analysis for wall boundary condition procedures for discontinuous Galerkin spectral element approximations of the compressible Euler equations. Two types of boundary procedures are examined. The…

数值分析 · 数学 2024-12-20 Florian J. Hindenlang , Gregor J. Gassner , David A. Kopriva

We consider a Gierer-Meinhardt system on a surface coupled with a parabolic PDE in the bulk, the domain confined by this surface. Such a model was recently proposed and analyzed for two-dimensional bulk domains by Gomez, Ward and Wei (SIAM…

偏微分方程分析 · 数学 2020-10-12 Jan-Phillip Bäcker , Matthias Röger , Dmitri Kuzmin

We study the existence of large or boundary blow-up solutions to semilinear equations involving the Finsler p-Laplacian on bounded domains with sufficiently smooth boundaries. We establish a Keller-Osserman-type condition that ensures the…

偏微分方程分析 · 数学 2026-05-22 N N Dattatreya

We study the existence or the nonexistence of classical solutions to a singular Gierer-Meinhardt system with Dirichlet boundary condition. The main feature of our model is that the activator and the inhibitor have different sources given by…

偏微分方程分析 · 数学 2007-05-23 Marius Ghergu , Vicentiu Radulescu

In this paper we characterise the global stability, global boundedness and recurrence of solutions of a scalar nonlinear stochastic differential equation. The differential equation is a perturbed version of a globally stable autonomous…

概率论 · 数学 2013-10-10 John A. D. Appleby , Jian Cheng , Alexandra Rodkina

A theoretical and numerical analysis of the linear stability of the boundary layer flow under a solitary wave is presented. In the present work, the nonlinear boundary layer equations are solved. The result is compared to the linear…

流体动力学 · 物理学 2015-06-17 Joris C. G. Verschaeve , Geir K. Pedersen

The stability of a spherically symmetric self-gravitating magnetic monopole is examined in the thin wall approximation: modeling the interior false vacuum as a region of de Sitter space; the exterior as an asymptotically flat region of the…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Guillermo Arreaga , Inyong Cho , Jemal Guven

We consider a bulk-membrane-coupled partial differential equation in which a single diffusion equation posed within the unit ball is coupled to a two-component reaction diffusion equation posed on the bounding unit sphere through a linear…

斑图形成与孤子 · 物理学 2019-10-21 Daniel Gomez

The spatially periodic breather solutions (SPBs) of the nonlinear Schr\"odinger equation, prominent in modeling rogue waves, are unstable. In this paper we numerically investigate the effects of nonlinear dissipation and higher order…

斑图形成与孤子 · 物理学 2022-06-15 C. M. Schober , A. Islas

Coupled nonlinear Schrodinger equations (CNLS) with an external elliptic function potential model a quasi one--dimensional interacting two-component Bose-Einstein condensate trapped in a standing light wave. New families of stationary…

软凝聚态物质 · 物理学 2007-05-23 N. A. Kostov , V. Z. Enol'skii , V. S. Gerdjikov , V. V. Konotop , M. Salerno

We provide a rigorous analysis of the self-similar solution of the temporal turbulent boundary layer, recently proposed in [2], in which a body force is used to maintain a statistically steady turbulent boundary layer with periodic boundary…

流体动力学 · 物理学 2024-06-17 Andrew Wynn , Saeed Parvar , Joseph O Connor , Sylvain Laizet

This paper is concerned with the evolution of the periodic boundary value problem and the mixed boundary value problem for a compressible mixture of binary fluids modeled by the Navier-Stokes-Cahn-Hilliard system in one dimensional space.…

偏微分方程分析 · 数学 2018-06-08 Yazhou Chen , Qiaolin He , Ming Mei , Xiaoding Shi

With a small parameter $\epsilon$, Poisson-Nernst-Planck (PNP) systems over a finite one-dimensional (1D) spatial domain have steady state solutions, called 1D boundary layer solutions, which profiles form boundary layers near boundary…

偏微分方程分析 · 数学 2015-06-30 Chia-Yu Hsieh , Tai-Chia Lin

The global analysis of the shadow Gierer-Meinhardt system with multiplicative white noise and general linear boundary conditions is investigated in this paper. For this reaction-diffusion system, we employ a fixed point argument to prove…

偏微分方程分析 · 数学 2021-09-13 Kwadwo Antwi-Fordjour , Seonguk Kim , Marius Nkashama

In this paper, we study the ground state standing wave solutions for the focusing bi-harmonic nonlinear Schr\"{o}dinger equation with a $\mu$-Laplacian term (BNLS). Such BNLS models the propagation of intense laser beams in a bulk medium…

偏微分方程分析 · 数学 2020-09-09 Tingjian Luo , Shijun Zheng , Shihui Zhu

This paper presents the linear global stability analysis of the incompressible axisymmetric boundary layer on a circular cylinder. The base flow is parallel to the axis of the cylinder at inlet. The pressure gradient is zero in the…

流体动力学 · 物理学 2016-09-16 N. Vinod , Ramesh Bhoraniya

We present a singular perturbation theory applicable to systems with hybrid boundary layer systems and hybrid reduced systems {with} jumps from the boundary layer manifold. First, we prove practical attractivity of an adequate attractor set…

最优化与控制 · 数学 2023-04-03 Suad Krilašević , Sergio Grammatico

The long-time asymptotic behavior of the focusing nonlinear Schr\"odinger (NLS) equation on the line with symmetric nonzero boundary conditions at infinity is characterized by using the recently developed inverse scattering transform (IST)…

偏微分方程分析 · 数学 2015-12-21 Gino Biondini , Dionyssios Mantzavinos

We study, analytically and numerically, the dynamical behavior of the solutions of the complex Ginzburg-Landau equation with diffraction but without diffusion, which governs the spatial evolution of the field in an active nonlinear laser…

斑图形成与孤子 · 物理学 2009-11-07 Jacob Scheuer , Boris A. Malomed

We study the orbital stability and instability of single-spike bound states of semiclassical nonlinear Schrodinger (NLS) equations with critical exponent, linear and nonlinear optical lattices (OLs). These equations may model…

偏微分方程分析 · 数学 2010-06-25 Tai-Chia Lin , Juncheng Wei , Wei Yao