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We focus on the initial boundary value problem for a general scalar balance law in one space dimension. Under rather general assumptions on the flux and source functions, we prove the well-posedness of this problem and the stability of its…

Analysis of PDEs · Mathematics 2018-09-18 Elena Rossi

In this work, we consider a boundary value problem for nonlinear triharmonic equation. Due to the reduction of nonlinear boundary value problems to operator equation for nonlinear terms we establish the existence, uniqueness and positivity…

Numerical Analysis · Mathematics 2020-04-02 Dang Quang A , Nguyen Quoc Hung , Vu Vinh Quang

A well-posed initial-boundary value problem is formulated for the model problem of the vector wave equation subject to the divergence-free constraint. Existence, uniqueness and stability of the solution is proved by reduction to a system…

General Relativity and Quantum Cosmology · Physics 2007-08-23 Alexander M. Alekseenko

We consider the initial boundary value problem to equations of motion of an inextensible hanging string of finite length under the action of the gravity. We also consider the problem in the case without any external forces. In this problem,…

Analysis of PDEs · Mathematics 2025-02-18 Tatsuo Iguchi , Masahiro Takayama

The aim of this paper is to draw attention to an interesting semilinear parabolic equation that arose when describing the chaotic dynamics of a polymer molecule in a liquid. This equation is nonlocal in time and contains a term, called the…

Analysis of PDEs · Mathematics 2020-12-30 Victor N. Starovoitov

This paper focuses on the initial- and boundary-value problem for the two-dimensional micropolar equations with only angular velocity dissipation in a smooth bounded domain. The aim here is to establish the global existence and uniqueness…

Analysis of PDEs · Mathematics 2017-09-20 Quansen Jiu , Jitao Liu , Jiahong Wu , Huan Yu

This paper is concerned with the initial-boundary value problem for the Einstein equations in a first-order generalized harmonic formulation. We impose boundary conditions that preserve the constraints and control the incoming gravitational…

General Relativity and Quantum Cosmology · Physics 2008-11-22 Oliver Rinne

Using the theory of fixed point index, we discuss the existence and multiplicity of non-negative solutions of a wide class of boundary value problems with coupled nonlinear boundary conditions. Our approach is fairly general and covers a…

Classical Analysis and ODEs · Mathematics 2014-08-14 Gennaro Infante , Paolamaria Pietramala

We study the initial boundary value problem for a heat equation in a domain containing a thin layer. The thermal conductivity of the layer is drastically different from that of the bulk of the domain; moreover, the layer is anisotropic and…

Analysis of PDEs · Mathematics 2023-12-18 Xingri Geng

In this paper, we consider the steady MHD equations with inhomogeneous boundary conditions for the velocity and the tangential component of the magnetic field. Using a new construction of the magnetic lifting, we obtain existence of weak…

Analysis of PDEs · Mathematics 2020-12-30 Zhibing Zhang , Chunyi Zhao

The problem of blow up of solutions to the initial boundary value problem for non-autonomous semilinear wave equation with damping and accelerating terms under the Robin boundary condition is studied. Sufficient conditions of blow up in a…

Analysis of PDEs · Mathematics 2018-12-12 Jamila Kalantarova

We consider initial-boundary value problems (IBVPs) on a finite interval for the system of the energy balance equation and Guyer-Krumhansl constitutive equation. Boundary conditions comprise various models of behavior of a physical system…

Analysis of PDEs · Mathematics 2025-12-01 Sergey A. Rukolaine

This paper investigates the existence of solutions for a class of nonlinear higher-order dynamic equations subject to mixed boundary conditions. We consider boundary value problems in which the nonlinear reaction functions satisfy…

Classical Analysis and ODEs · Mathematics 2025-06-11 Shalmali Bandyopadhyay , Svetlin G. Georgiev

A method is proposed to deal with some multivalued semiflows with weak continuity properties. An application to the reaction-diffusion problems with nonmonotone multivalued semilinear boundary condition and nonmonotone multivalued…

Analysis of PDEs · Mathematics 2014-02-07 P. Kalita , G. Łukaszewicz

In this paper, we consider an initial boundary value problem for the porous medium equation with absorption under a nonlinear nonlocal boundary condition and a nonnegative initial datum. We prove the local existence of solutions, establish…

Analysis of PDEs · Mathematics 2026-03-24 Alexander Gladkov

We explore local existence and properties of classical weak solutions to the initial-boundary value problem of a one-dimensional quasilinear equation of elastodynamics with non-convex stored-energy function, a model of phase transitions in…

Analysis of PDEs · Mathematics 2016-01-26 Seonghak Kim , Youngwoo Koh

We consider a boundary-value problem for the second order elliptic differential operator with rapidly oscillating coefficients in a domain $\Omega_{\epsilon}$ that is $\epsilon-$periodically perforated by small holes. The holes are divided…

Analysis of PDEs · Mathematics 2008-06-16 Taras A. Mel'nyk , Olena A. Sivak

We present a method to solve initial-boundary value problems for linear and integrable nonlinear differential-difference evolution equations. The method is the discrete version of the one developed by A. S. Fokas to solve initial-boundary…

Exactly Solvable and Integrable Systems · Physics 2009-11-13 Gino Biondini , Guenbo Hwang

We study the initial-boundary value problem of the Navier-Stokes equations for incompressible fluids in a general domain in $\R^n$ with compact and smooth boundary, subject to the kinematic and vorticity boundary conditions on the non-flat…

Analysis of PDEs · Mathematics 2009-01-05 Gui-Qiang Chen , Dan Osborne , Zhongmin Qian

We establish existence and uniqueness results for initial-boundary value problems for transport equations in one space dimension with nearly incompressible velocity fields, under the sole assumption that the fields are bounded. In the case…

Analysis of PDEs · Mathematics 2021-12-20 Simone Dovetta , Elio Marconi , Laura V. Spinolo