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We derive in a direct and rather straightforward way the null controllability of a 2-D heat equation with boundary control. We use the so-called flatness approach, which consists in parameterizing the solution and the control by the…

Optimization and Control · Mathematics 2013-04-22 Philippe Martin , Lionel Rosier , Pierre Rouchon

We derive in a direct and rather straightforward way the null controllability of the N-dimensional heat equation in a bounded cylinder with boundary control at one end of the cylinder. We use the so-called flatness approach, which consists…

Optimization and Control · Mathematics 2013-10-24 Philippe Martin , Lionel Rosier , Pierre Rouchon

We derive in a straightforward way the exact controllability of the 1-D Schrodinger equation with a Dirichlet boundary control. We use the so-called flatness approach, which consists in parameterizing the solution and the control by the…

Optimization and Control · Mathematics 2014-04-04 Philippe Martin , Lionel Rosier , Pierre Rouchon

We derive in a direct way the exact controllability of the 1D free Schr\"odinger equation with Dirichlet boundary control. We use the so-called flatness approach, which consists in parametrizing the solution and the control by the…

Optimization and Control · Mathematics 2018-04-23 Philippe Martin , Lionel Rosier , Pierre Rouchon

We consider linear one-dimensional parabolic equations with space dependent coefficients that are only measurable and that may be degenerate or singular.Considering generalized Robin-Neumann boundary conditions at both extremities, we prove…

Analysis of PDEs · Mathematics 2015-09-03 Philippe Martin , Lionel Rosier , Pierre Rouchon

In this paper, we are concerned with the boundary controllability of heat equation with dynamic boundary conditions. More precisely, we prove that the equation is null controllable at any positive time by means of a boundary control…

Analysis of PDEs · Mathematics 2022-06-23 S. E. Chorfi , G. El Guermai , A. Khoutaibi , L. Maniar

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

Flatness-based control design is a well established method to generate open-loop control signals. Several articles discuss the application of flatness-based control design of (reaction-) diffusion problems for various scenarios. Beside the…

Optimization and Control · Mathematics 2023-12-05 Stephan Scholz , Lothar Berger , Dirk Lebiedz

In this note, we give an elementary proof of the lack of null controllability for the heat equation on the half line by employing the machinery inherited by the unified transform, known also as the Fokas method. This approach also extends…

Optimization and Control · Mathematics 2020-01-15 Konstantinos Kalimeris , Turker Ozsari

This paper aims to answer an open problem posed by Morancey in 2015 concerning the null controllability of the heat equation on (-1, 1) with an internal inverse square potential located at x = 0. For the range of singularity under study,…

Optimization and Control · Mathematics 2025-12-18 Pierre Lissy , Tanguy Lourme

We explore further controllability problems through a standard least square approach. By setting up a suitable error functional $E$, and putting $m(\ge0)$ for the infimum, we interpret approximate controllability by asking $m=0$, while…

Optimization and Control · Mathematics 2014-01-15 Pablo Pedregal

We analyze controllability properties for the one-dimensional heat equation with singular inverse-square potential $$ u_t-u_{xx}-\frac{\mu}{x^2}u=0,\;\;\; (x,t)\in(0,1)\times(0,T).$$ For any $\mu<1/4$, we prove that the equation is null…

Analysis of PDEs · Mathematics 2018-05-29 Umberto Biccari

We consider a linear Korteweg-de Vries equation on a bounded domain with a left Dirichlet boundary control.The controllability to the trajectories of such a system was proved in the last decade by using Carleman estimates.Here, we go a step…

Analysis of PDEs · Mathematics 2018-04-18 Ivonne Rivas , Philippe Martin , Lionel Rosier , Pierre Rouchon

This article is devoted to the analysis of control properties for a heat equation with singular potential $\mu/\delta^2$, defined on a bounded $C^2$ domain $\Omega\subset\mathbb{R}^N$, where $\delta$ is the distance to the boundary…

Analysis of PDEs · Mathematics 2016-02-24 Umberto Biccari , Enrique Zuazua

We consider the control problem for the generalized heat equation for a Schroedinger operator on a domain with a reflection symmetry with respect to a hyperplane. We show that if this system is null-controllable, then so is the system on…

Analysis of PDEs · Mathematics 2022-07-21 Michela Egidi , Albrecht Seelmann

This paper addresses the set-point control problem of a heat equation with in-domain actuation. The proposed scheme is based on the framework of zero dynamics inverse combined with flat system control. Moreover, the set-point control is…

Optimization and Control · Mathematics 2015-11-03 Jun Zheng , Guchuan Zhu

This paper presents a new numerical method which approximates Neumann type null controls for the heat equation and is based on the Fokas method. This is a direct method for solving problems originating from the control theory, which allows…

Numerical Analysis · Mathematics 2023-01-18 Konstantinos Kalimeris , Türker Özsarı , Nikolaos Dikaios

We study the tracking or sidewise controllability of the heat equation. More precisely, we seek for controls that, acting on part of the boundary of the domain where the heat process evolves, aim to assure that the normal trace or flux on…

Optimization and Control · Mathematics 2024-12-24 Jon Asier Bárcena Petiso , Enrique Zuazua

In this paper we focus on the null controllability problem for the heat equation with the so-called inverse square potential and a memory term. To this aim, we first establish the null controllability for a nonhomogeneous singular heat…

Analysis of PDEs · Mathematics 2020-05-12 Brahim Allal , Genni Fragnelli , Jawad Salhi

We are interested in the determination of the reachable states for the boundary control of the one-dimensional heat equation. We consider either one or two boundary controls. We show that reachable states associated with square integrable…

Analysis of PDEs · Mathematics 2015-10-01 Philippe Martin , Lionel Rosier , Pierre Rouchon
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