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In this work, we investigate the approximate controllability of a class of one-dimensional degenerate parabolic equations with Robin boundary conditions. The degeneracy occurs at one endpoint of the spatial domain, and we apply an impulsive…

Optimization and Control · Mathematics 2025-05-07 Hind El Baggari , Ilham Ouelddris

In this paper, we prove a logarithmic convexity that reflects an observability estimate at a single point of time for 1-D heat equation with dynamic boundary conditions. Consequently, we establish the impulse approximate controllability for…

Optimization and Control · Mathematics 2022-06-23 S. E. Chorfi , G. El Guermai , L. Maniar , W. Zouhair

This review surveys previous and recent results on null controllability and inverse problems for parabolic systems with dynamic boundary conditions. We aim to demonstrate how classical methods such as Carleman estimates can be extended to…

Optimization and Control · Mathematics 2024-09-17 S. E. Chorfi , L. Maniar

In this paper, we study several theoretical and numerical questions concerning the null controllability problems for linear parabolic equations and systems for several dimensions. The control is distributed and acts on a small subset of the…

Optimization and Control · Mathematics 2024-11-22 Enrique Fernandez-Cara , Roberto Morales , Diego A. Souza

This paper examines the impulse controllability of degenerate singular parabolic equations through a modern framework focused on finite-time stabilization. Furthermore, we provide an explicit estimate for the exponential decay of the…

Analysis of PDEs · Mathematics 2026-04-03 Walid Zouhair , Ghita El Guermai , Ilham Ouelddris

This paper is concerned with the null controllability for linear backward stochastic parabolic equations with dynamic boundary conditions and convection terms. Using the classical duality argument, the null controllability is obtained via…

Optimization and Control · Mathematics 2025-01-17 Mahmoud Baroun , Said Boulite , Abdellatif Elgrou , Lahcen Maniar

This paper deals with the numerical computation of boundary null controls for the 1D wave equation with a potential. The goal is to compute an approximation of controls that drive the solution from a prescribed initial state to zero at a…

Optimization and Control · Mathematics 2015-02-03 Nicolae Cîndea , Enrique Fernandez-Cara , Arnaud Munch

This paper concerns the null controllability for a class of stochastic degenerate parabolic equations. We first establish a global Carleman estimate for a linear forward stochastic degenerate equation with multiplicative noise. Using this…

Optimization and Control · Mathematics 2022-02-22 M. Baroun , M. Fadili , A. Khchine , L. Maniar

The main purpose of this article is to prove a logarithmic convexity estimate for the solution of a linear heat equation subject to dynamic boundary conditions in a bounded convex domain. As an application, we prove the impulsive null…

Optimization and Control · Mathematics 2022-06-23 S. E. Chorfi , G. El Guermai , L. Maniar , W. Zouhair

In this article, we study the uniform null controllability problem for a system of coupled parabolic equations with an oscillating coefficient. This is done in three steps -- first, we study the spectral properties of an elliptic operator;…

Analysis of PDEs · Mathematics 2024-04-05 Vaibhav Kumar Jena , Abu Sufian

We consider a fully-discrete approximations of 1-D heat equation with dynamic boundary conditions for which we provide a controllability result. The proof of this result is based on a relaxed observability inequality for the corresponding…

Analysis of PDEs · Mathematics 2022-09-30 Rodrigo Lecaros , Roberto Morales , Ariel Pérez , Sebastián Zamorano

In this paper, we continue the study of some controllability issues for the forward stochastic heat equation with dynamic boundary conditions. The main novelty in the present paper consists of considering only one control without extra…

Optimization and Control · Mathematics 2024-12-02 Mahmoud Baroun , Said Boulite , Abdellatif Elgrou , Omar Oukdach

The focus of this paper is on the null controllability of two kinds of coupled systems including both degenerate and non-degenerate equations with switching control. We first establish the observability inequality for measurable subsets in…

Optimization and Control · Mathematics 2023-08-21 Yuanhang Liu , Weijia Wu , Donghui Yang

The primary focus of this paper is to establish the internal null controllability for the one-dimensional heat equation featuring dynamic boundary conditions. This achievement is realized by introducing a new Carleman estimate and an…

Optimization and Control · Mathematics 2024-04-03 El Mustapha Ait Ben Hassi , Mariem Jakhoukh , Lahcen Maniar , Walid Zouhair

We investigate a backward anisotropic stochastic parabolic equation with general dynamic boundary conditions, where the drift involves both $\mathbb{L}^2$ and $\mathbb{H}^{-1}$ bulk--surface terms. We first establish the well-posedness of…

Optimization and Control · Mathematics 2026-02-17 Said Boulite , Abdellatif Elgrou , Lahcen Maniar , Abdelaziz Rhandi

In this paper, we continue the study of some controllability issues for the forward stochastic parabolic equation with dynamic boundary conditions. The main novelty in the present paper consists of considering only one control without extra…

Analysis of PDEs · Mathematics 2024-03-14 Said Boulite , Abdellatif Elgrou , Lahcen Maniar , Omar Oukdach

This review examines classical and recent results on controllability and inverse problems for hyperbolic and dispersive equations with dynamic boundary conditions. We aim to illustrate the applicability of Carleman estimates to establish…

Optimization and Control · Mathematics 2025-05-22 S. E. Chorfi , L. Maniar , R. Morales

We present a finite element (FE) scheme for the numerical approximation of the solution to a non-local Poisson equation involving the one-dimensional fractional Laplacian $(-d_x^2)^s$ on the interval $(-L,L)$. In particular, we include the…

Analysis of PDEs · Mathematics 2017-07-24 Umberto Biccari , Víctor Hernández-Santamaría

This paper studies the approximate and null controllability for impulse controlled systems of heat equations coupled by a pair (A,B) of constant matrices. We present a necessary and sufficient condition for the approximate controllability,…

Optimization and Control · Mathematics 2017-01-23 Shulin Qin , Gengsheng Wang

In this article, we present two different approaches for obtaining quantitative inequalities in the context of parabolic optimal control problems. Our model consists of a linearly controlled heat equation with Dirichlet boundary condition…

Optimization and Control · Mathematics 2021-03-02 Idriss Mazari
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