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We consider a system of two parabolic equations with a forcing term present in one equation and a cubic coupling term in the other one. We prove that the system is locally null controllable.

Optimization and Control · Mathematics 2010-02-02 Jean-Michel Coron , Sergio Guerrero , Lionel Rosier

We prove the interior null-controllability of one-dimensional parabolic equations with time independent measurable coefficients.

Optimization and Control · Mathematics 2007-05-23 G. Alessandrini , L. Escauriaza

This work serves as a continuation of our preceding paper [28]. In that study, we presented a separable variable method to derive the Lebeau-Robbiano spectral inequality for a specific degenerate parabolic equation and subsequently employed…

Optimization and Control · Mathematics 2026-05-19 Donghui Yang , Mengze Gu , Baozhu Guo , Ghadir Shokor

This paper deals with controllability properties of a cubic Ginzburg-Landau equation with dynamic boundary conditions. More precisely, we prove a local null controllability result by using a single control supported in a small subset of the…

Analysis of PDEs · Mathematics 2023-09-14 Nicolás Carreño , Alberto Mercado , Roberto Morales

We show Carleman estimates, observability inequalities and null controllability results for parabolic equations with non smooth coefficients degenerating at an interior point.

Analysis of PDEs · Mathematics 2015-08-18 Genni Fragnelli , Dimitri Mugnai

This paper is devoted to the study of the null and approximate controllability for some classes of linear coupled parabolic systems with less controls than equations. More precisely, for a given bounded domain in R^N, we consider a system…

Analysis of PDEs · Mathematics 2017-01-23 Michel Duprez , Pierre Lissy

We are concerned about the null controllability of a linear degenerate parabolic equation with one delay parameter on the line $(0,1)$, where the control force is exerted on a subdomain of $(0,1)$ or on the boundary. For that we show how…

Optimization and Control · Mathematics 2019-02-07 E. L. Mustapha Ait Benhassi , Mohamed Fadili , Lahcen Maniar

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 analyze the null controllability property for a degenerate parabolic equation involving memory terms with a locally distributed control. We first derive a null controllability result for a nonhomogeneous degenerate heat…

Optimization and Control · Mathematics 2021-07-07 Brahim Allal , Genni Fragnelli

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

In this paper, we study inverse boundary problems associated with semilinear parabolic systems in several scenarios where both the nonlinearities and the initial data can be unknown. We establish several simultaneous recovery results…

Analysis of PDEs · Mathematics 2022-10-12 Yi-Hsuan Lin , Hongyu Liu , Xu Liu , Shen Zhang

In this article we study a controllability problem for a parabolic and a hyperbolic partial differential equations in which the control is the shape of the domain where the equation holds. The quantity to be controlled is the trace of the…

Analysis of PDEs · Mathematics 2012-11-07 Jonathan Touboul

In this paper we prove a uniform controllability result for a fourth order parabolic partial differential equation which includes a transport term, when the coefficients of higher order terms vanish. We prove the null controllability of the…

Analysis of PDEs · Mathematics 2019-06-20 Lopez-García Marcos , Mercado Alberto

We study a control problem governed by a semilinear parabolic equation. The control is a measure that acts as the kernel of a possibly nonlocal time delay term and the functional includes a non-differentiable term with the measure-norm of…

Optimization and Control · Mathematics 2019-01-25 Eduardo Casas , Mariano Mateos , Fredi Tröltzsch

One proves that the linear and semilinear stochastic parabolic equations with a multiplicative noise with a finite number of modes are exactly null controllable.

Analysis of PDEs · Mathematics 2011-06-14 Viorel Barbu

In this paper, we prove the null controllability of a one-dimensional fourth-order degenerate parabolic equation with a singular potential. Here, we analyze cases where boundary control conditions are applied at the left endpoint. We…

Analysis of PDEs · Mathematics 2025-05-06 Leandro Galo-Mendoza

In this paper, we investigate the null controllability of nonlinear wave systems. Initially, we employ a combination of the Galerkin method and a fixed point theorem to establish the null controllability for semi-linear wave equations with…

Analysis of PDEs · Mathematics 2025-11-10 Yan Cui , Peng Lu , Yi Zhou

An abstract framework guaranteeing the local continuous differentiability of the value function associated with optimal stabilization problems subject to abstract semilinear parabolic equations subject to a norm constraint on the controls…

Optimization and Control · Mathematics 2023-05-19 Karl Kunisch , Buddhika Priyasad

This paper concerns with the hierarchical control of the semilinear parabolic equations with interior degeneracy. By a Stackelberg-Nash strategy, we consider the linear and semilinear system with one leader and two followers. First, for any…

Optimization and Control · Mathematics 2023-10-31 Hang Gao , Wei Yang , Muming Zhang