Results 11 to 20 of about 639,340 (301)

Pullback attractors for a semilinear heat equation in a non-cylindrical domain

open access: yesJournal of Differential Equations, 2008
The existence and uniqueness of a variational solution satisfying energy equality is proved for a semilinear heat equation in a non-cylindrical domain with homogeneous Dirichlet boundary condition, under the assumption that the spatial domains are bounded and increase with time.
P. Kloeden, P. Marín-Rubio, J. Real
semanticscholar   +6 more sources

Exact controllability of wave equations with locally distributed control in non-cylindrical domain

open access: yesJournal of Mathematical Analysis and Applications, 2020
Exact controllability of a one-dimensional wave equation with locally distributed control in non-cylindrical domain is considered. This equation characterizes the motion of a string with a fixed endpoint and the other moving one. If the adjoint system is
L. Cui
semanticscholar   +5 more sources

Exact Null Controllability of a Wave Equation with Dirichlet–Neumann Boundary in a Non-Cylindrical Domain

open access: yesMathematics, 2023
In this paper, by applying the Hilbert Uniqueness Method in a non-cylindrical domain, we prove the exact null controllability of one wave equation with a moving boundary.
Lizhi Cui, Jing Lu
doaj   +3 more sources

Existence of solution to parabolic equations with mixed boundary condition on non-cylindrical domains [PDF]

open access: yesJournal of Differential Equations, 2016
In this paper we study the existence of weak solutions to initial boundary value problems of linear and semi-linear parabolic equations with mixed boundary conditions on non-cylindrical domains ⋃ t ∈ ( 0 , T ) Ω ( t ) × { t } of spatial-temporal space R ...
Tujin Kim, D. Cao
semanticscholar   +3 more sources

Capillary Surfaces in Non-Cylindrical Domains

open access: yesZeitschrift für Analysis und ihre Anwendungen, 2000
This paper is concerned with the capillary problem in a class of non-cylindrical domains in K \subset \mathbb R^{n+1} obtained by scaling a bounded cross-section ­ \Omega \subset \mathbb R^n
G. Schindlmayr
semanticscholar   +4 more sources

Non-Fourier Heat Conduction of a Functionally Graded Cylinder Containing a Cylindrical Crack

open access: yesAdvances in Mathematical Physics, 2020
The present work investigates the problem of a cylindrical crack in a functionally graded cylinder under thermal impact by using the non-Fourier heat conduction model.
Jiawei Fu   +3 more
doaj   +2 more sources

Remarks on hierarchic control for the wave equation in a non cylindrical domain

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2015
9 pages.
Isaías Pereira de Jesus
semanticscholar   +4 more sources

Exact controllability problem of a wave equation in non-cylindrical domains

open access: yesElectronic Journal of Differential Equations, 2015
Let $\alpha: [0, \infty)\to(0, \infty)$ be a twice continuous differentiable function which satisfies that $\alpha(0)=1$, $\alpha'$ is monotone and ...
Hua Wang, Yijun He, Shengjia Li
doaj   +2 more sources

The $L^{p}$ regularity problem for the heat equation in non-cylindrical domains

open access: yesIllinois Journal of Mathematics, 1999
The authors consider the Dirichlet problem for the heat equation in a domain with minimally smooth boundary. They obtain sharp \(L^p\) estimates fo the parabolic non tangential maximal function of the gradient of the solutions.
S. Hofmann, John L. Lewis
semanticscholar   +4 more sources

Exact Null Controllability of a One-Dimensional Wave Equation with a Mixed Boundary

open access: yesMathematics, 2023
In this paper, exact null controllability of one-dimensional wave equations in non-cylindrical domains was discussed. It is different from past papers, as we consider boundary conditions for more complex cases.
Lizhi Cui, Jing Lu
doaj   +1 more source

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