Results 31 to 40 of about 210,860 (290)

Weak solutions of parabolic equations in non-cylindrical domains [PDF]

open access: yesProceedings of the American Mathematical Society, 1997
In their classical work, Ladyzhenskaya and Ural ′ ’
Brown, Russell M.   +2 more
openaire   +2 more sources

Weak solutions of fractional differential equations in non cylindrical domains

open access: yesNonlinear Analysis: Real World Applications, 2017
We study a time fractional heat equation in a noncylindrical domain. The problem is one-dimensional. We prove existence of properly defined weak solutions by means of the Galerkin approximation.
A. Kubica, P. Rybka, K. Ryszewska
openaire   +3 more sources

Stability for the Kirchhoff Plates Equations with Viscoelastic Boundary Conditions in Noncylindrical Domains

open access: yesAbstract and Applied Analysis, 2013
We study Kirchhoff plates equations with viscoelastic boundary conditions in a noncylindrical domain. This work is devoted to proving the global existence, uniqueness of solutions, and decay of the energy of solutions for Kirchhoff plates equations in a ...
Jum-Ran Kang
doaj   +1 more source

On a Problem Connected with Navier-stokes Equations in Non Cylindrical Domains

open access: yesJournal of Mathematics and Statistics, 2005
Summary: We showed the existence of weak solutions of equations that represent flows of a non-homogeneous viscous incompressible fluids in a non cylindrical domain in \(\mathbb R^3\). The classical Navier-Stokes equation is a particular case of the equations here considered.
Limaco, J.   +3 more
openaire   +2 more sources

Factorization of linear elliptic boundary value problems in non-cylindrical domains [PDF]

open access: yesComptes Rendus. Mathématique, 2011
We present a method of factorization for linear elliptic boundary value problems considered in non-cylindrical domains. We associate a control problem to the boundary value problem which regularizes it. The technique of change of variables is used to study this problem.
Henry, Jacques   +2 more
openaire   +1 more source

Construction of a Right Inverse for the Divergence in Non-cylindrical Time Dependent Domains

open access: yesAnnals of PDE, 2023
AbstractWe construct a stable right inverse for the divergence operator in non-cylindrical domains in space-time. The domains are assumed to be Hölder regular in space and evolve continuously in time. The inverse operator is of Bogovskij type, meaning that it attains zero boundary values.
Olli Saari, Sebastian Schwarzacher
openaire   +4 more sources

EXACT OBSERVABILITY OF A 1D WAVE ON A NON-CYLINDRICAL DOMAIN [PDF]

open access: yes, 2021
We discuss admissibility and exact observability estimates of boundary observation and interior point observation of a one-dimensional wave equation on a time dependent domain for sufficiently regular boundary functions.
HOANG, Duc-Trung, HAAK, Bernhard
core  

Fredholmness of an abstract differential equation of elliptic type

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
In this work, we obtain algebraic conditions which assure the Fredholm solvability of an abstract differential equation of elliptic type. In this respect, our work can be considered as an extension of Yakubov's results to the case of boundary conditions ...
A. Aibeche
doaj   +1 more source

p-Laplacian wave equations in non-cylindrical domains

open access: yes, 2021
This paper is devoted to studying the stability of p-Laplacian wave equations with strong damping in non-cylindrical domains. The method of proof based on some estimates for time-varying coefficients rising from moving boundary and a modified Kormonik inequality.
Liu, Lingyang, Gao, Hang
openaire   +2 more sources

Fully non-linear simulation of second-order resonance in a three-dimensional tank using the PSME method [PDF]

open access: yes, 2012
Sloshing occurs when a partially filled tank is subject to external excitation. If the excitation frequency is equal to half of the second-order natural frequency obtained from the linear theory, then second-order resonance may occur.
Borthwick, Alistair G. L.   +2 more
core   +1 more source

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