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相关论文: Weakly Nonlinear Geometric Optics for Hyperbolic S…

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We consider the Cauchy problem for a stochastic scalar parabolic-hyperbolic equation in any space dimension with nonlocal, nonlinear, and possibly degenerate diffusion terms. The equations are nonlocal because they involve fractional…

偏微分方程分析 · 数学 2020-08-10 Neeraj Bhauryal , Ujjwal Koley , Guy Vallet

We derive entropy conserving and entropy dissipative overlapping domain formulations for systems of nonlinear hyperbolic equations in conservation form, such as would be approximated by overset mesh methods. The entropy conserving…

数值分析 · 数学 2022-10-05 David A. Kopriva , Gregor J. Gassner , Jan Nordstrom

Aim of this paper is to review some basic ideas and recent developments in the theory of strictly hyperbolic systems of conservation laws in one space dimension. The main focus will be on the uniqueness and stability of entropy weak…

偏微分方程分析 · 数学 2007-05-23 Alberto Bressan

We derive new boundary conditions and implementation procedures for nonlinear initial boundary value problems that lead to energy and entropy bounded solutions. A step-by-step procedure for general nonlinear hyperbolic problems on…

数值分析 · 数学 2024-05-10 Jan Nordström

In this paper, we study the local exact boundary controllability of entropy solutions to a class linearly degenerate hyperbolic systems of conservation laws with constant multiplicity. The authors prove the two-sided boundary…

最优化与控制 · 数学 2016-07-13 Tatsien Li , Lei Yu

The existing paradox between theory and computational experiment for weak solutions of systems of conservation laws in higher space dimensions is arguably resolved. Apparently successful computations are identified with underlying…

偏微分方程分析 · 数学 2024-08-28 Michael Sever

We provide a justification with rigorous error estimates showing that the leading term in weakly nonlinear geometric optics expansions of highly oscillatory reflecting pulses is close to the uniquely determined exact solution for small…

偏微分方程分析 · 数学 2013-04-22 Jean-Francois Coulombel , Mark Williams

We investigate in this paper the existence of the leading profile of a WKB expansion for quasilinear initial boundary value problems with a highly oscillating forcing boundary term. The framework is weakly nonlinear, as the boundary term is…

偏微分方程分析 · 数学 2021-12-10 Corentin Kilque

We consider solutions of two-dimensional $m \times m$ systems hyperbolic conservation laws that are constant in time and along rays starting at the origin. The solutions are assumed to be small $L^\infty$ perturbations of a constant state…

偏微分方程分析 · 数学 2013-05-07 Volker Elling , Joseph Roberts

We investigate the consistency and convergence of flux-corrected finite element approximations in the context of nonlinear hyperbolic conservation laws. In particular, we focus on a monolithic convex limiting approach and prove a…

数值分析 · 数学 2023-08-30 Dmitri Kuzmin , Mária Lukácova-Medvid'ová , Philipp Öffner

Given a first-order nonlinear hyperbolic system of conservation laws endowed with a convex entropy-entropy flux pair, we can consider the class of weak solutions containing shock waves depending upon some small scale parameters. In this…

偏微分方程分析 · 数学 2019-12-10 Philippe G. LeFloch , Allen M. Tesdall

We justify supercritical geometric optics in small time for the defocusing semiclassical Nonlinear Schrodinger Equation for a large class of non-necessarily homogeneous nonlinearities. The case of a half-space with Neumann boundary…

偏微分方程分析 · 数学 2009-11-13 D. Chiron , F. Rousset

Systems of PDEs comprised of a combination of constraints and evolution equations are ubiquitous in physics. For both theoretical and practical reasons, such as numerical integration, it is desirable to have a systematic understanding of…

偏微分方程分析 · 数学 2024-10-25 Fernando Abalos , Oscar Reula , David Hilditch

We study inhomogeneous non-strictly hyperbolic systems of two equations, which are a formal generalization of the transformed one-dimensional Euler-Poisson equations. For such systems, a complete classification of the behavior of the…

偏微分方程分析 · 数学 2024-10-08 Marko K. Turzynsky

We revisit a well-established model for highly re-entrant semi-conductor manufacturing systems, and analyze it in the setting of states, in- and outfluxes being Borel measures. This is motivated by the lack of optimal solutions in the…

偏微分方程分析 · 数学 2019-12-30 Xiaoqian Gong , Matthias Kawski

We consider a strictly hyperbolic, genuinely nonlinear system of conservation laws in one space dimension. A sharp decay estimate is proved for the positive waves in an entropy weak solution. The result is stated in terms of a partial…

偏微分方程分析 · 数学 2007-05-23 Alberto Bressan , Tong Yang

This paper addresses the issue of the formulation of weak solutions to systems of nonlinear hyperbolic conservation laws as integral balance laws. The basic idea is that the "meaningful objects" are the fluxes, evaluated across domain…

偏微分方程分析 · 数学 2020-07-13 Matania Ben-Artzi , Jiequan Li

In this paper, we discuss the asymptotic behaviour of the weak solution to the Cauchy problem for the scalar viscous conservation law, with nonlinear Laplacian viscosity. Firstly, we obtain the existence, uniqueness and regularity of…

偏微分方程分析 · 数学 2023-12-07 Yechi Liu

We consider weak solutions to a two-dimensional simplified Ericksen-Leslie system of compressible flow of nematic liquid crystals. An initial-boundary value problem is first studied in a bounded domain. By developing new techniques and…

偏微分方程分析 · 数学 2013-08-13 Fei Jiang , Song Jiang , Dehua Wang

Nonlinear scalar conservation laws are traditionally viewed as transport equations. We take instead the viewpoint of these PDEs as continuity equations with an implicitly defined velocity field. We show that a weak solution is the entropy…

偏微分方程分析 · 数学 2024-04-03 Ulrik S. Fjordholm , Ola H. Mæhlen , Magnus C. Ørke