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The goal of the present article is to study controllability properties of mixed systems of linear parabolic-transport equations, with possibly non-diagonalizable diffusion matrix, on the one-dimensional torus. The equations are coupled by…

Optimization and Control · Mathematics 2023-01-03 Armand Koenig , Pierre Lissy

We study the controllability of a coupled system of linear parabolic equations, with non-negativity constraint on the state. We establish two results of controllability to trajectories in large time: one for diagonal diffusion matrices with…

Optimization and Control · Mathematics 2021-05-18 Pierre Lissy , Clément Moreau

In this paper we study the null controllability of some non diagonalizable degenerate parabolic systems of PDEs, we assume that the diffusion, coupling and controls matrices are constant and we characterize the null controllability by an…

Optimization and Control · Mathematics 2018-08-24 E. M. Ait Ben Hassi , M. Fadili , L. Maniar

The aim of this paper is to study the null controllability of a class of quasilinear parabolic equations. In a first step we prove that the associated linear parabolic equations with non-constant diffusion coefficients are approximately…

Analysis of PDEs · Mathematics 2023-09-28 Nicolae Cindea , Geoffrey Lacour

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

This paper deals with the analysis of the internal control with constraint of positive kind of a parabolic PDE with nonlinear diffusion when the time horizon is large enough. The minimal controllability time will be strictly positive. We…

Analysis of PDEs · Mathematics 2021-04-12 Miguel R. Nuñez-Chávez

In this paper we study the local boundary controllability for a non linear system of two degenerate parabolic equations with a control acting on only one equation. We analyze boundary null controllability properties for the linear system…

Analysis of PDEs · Mathematics 2024-11-11 Margarita Arias , Abdelkarim Hajjaj , Amine Sbai

In this paper we study the boundary controllability for a system of two coupled degenerate/singular parabolic equations with a control acting on only one equation. We analyze both approximate and null boundary controllability properties.…

Optimization and Control · Mathematics 2021-04-02 Brahim Allal , Abdelkarim Hajjaj , Jawad Salhi , Amine Sbai

This paper deals with the insensitizing controllability property of the quasilinear parabolic equation with dynamic boundary conditions. This problem can be reformulated as a null controllability problem for a cascade quasilinear system…

Optimization and Control · Mathematics 2024-12-02 Idriss Boutaayamoua , Fouad Et-tahri , Lahcen Maniar

This paper is devoted to the partial null controllability issue of parabolic linear systems with n equations. Given a bounded domain in R N, we study the effect of m localized controls in a nonempty open subset only controlling p components…

Analysis of PDEs · Mathematics 2017-01-20 Farid Ammar Khodja , Franz Chouly , Michel Duprez

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

We consider a $4\times4$ nonlinear reaction-diffusion system posed on a smooth domain $\Omega$ of $\mathbb{R}^N$ ($N \geq 1$) with controls localized in some arbitrary nonempty open subset $\omega$ of the domain $\Omega$. This system is a…

Optimization and Control · Mathematics 2018-08-09 Kévin Le Balc'h

This work studies the null controllability of a system of coupled parabolic PDEs. In particular, our work specializes to an important subclass of these control problems which are coupled by first and zero-order couplings and are,…

Optimization and Control · Mathematics 2018-10-17 Drew Steeves , Bahman Gharesifard , Abdol-Reza Mansouri

In this paper we study the global approximate multiplicative controllability for nonlinear degenerate parabolic Cauchy problems. In particular, we consider a one-dimensional semilinear degenerate reaction-diffusion equation in divergence…

Optimization and Control · Mathematics 2020-01-28 Giuseppe Floridia , Carlo Nitsch , Cristina Trombetti

This article deals with the boundary null controllability of some degenerate parabolic equations posed on a square domain, presenting the first study of boundary controllability for such equations in multidimensional settings. The proof…

Analysis of PDEs · Mathematics 2025-05-26 Víctor Hernández-Santamaría , Subrata Majumdar , Luz de Teresa

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

We prove a Carleman estimate for a one-dimensional parabolic equation which degenerates at one extremity of the domain and has a bounded, time dependent coefficient multiplying the diffusion term. Then we use the estimate to show the null…

Analysis of PDEs · Mathematics 2025-08-26 Alfredo S. Gamboa , Juan Limaco , Luis P. Yapu

In this paper, we prove the null controllability of some parabolic-elliptic systems. The control is distributed, locally supported in space and appears only in one PDE. The arguments rely on fixed-point reformulation and suitable Carleman…

Optimization and Control · Mathematics 2012-04-16 E. Fernández-Cara , J. Limaco , S. B. de Menezes

In this paper, we consider the well-known Fattorini's criterion for approximate controllability of infinite dimensional linear systems of type $y'=A y+Bu$. We precise the result proved by H. O. Fattorini in \cite{Fattorini1966} for bounded…

Analysis of PDEs · Mathematics 2014-08-27 Mehdi Badra , Takéo Takahashi

This work is devoted to the stabilization of parabolic systems with a finite-dimensional control subjected to a constant delay. Our main result shows that the Fattorini-Hautus criterion yields the existence of such a feedback control, as in…

Optimization and Control · Mathematics 2020-04-20 Imene Aicha Djebour , Takéo Takahashi , Julie Valein
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