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In this article we study the local controllability of the one-dimensional Cahn-Hilliard-Navier-Stokes equation, that is Cahn-Hilliard-Burgers' equation, around a certain steady state using a localized interior control acting only in the…

Optimization and Control · Mathematics 2026-02-02 Manika Bag , Sheetal Dharmatti , Subrata Majumdar , Debanjana Mitra

We study the exact boundary controllability of a nonlinear coupled system of two Korteweg-de Vries equations on a bounded interval. The model describes the interactions of two weakly nonlinear gravity waves in a stratified fluid. Due to the…

Analysis of PDEs · Mathematics 2025-03-11 F. A. Gallego , A. F. Pazoto , I. Rivas

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 study the null controllability for a degenerate/singular wave equation with drift in non divergence form. In particular, considering a control localized on the non degenerate boundary point, we provide some conditions for the boundary…

Analysis of PDEs · Mathematics 2024-07-10 Genni Fragnelli , Dimitri Mugnai , Amine Sbai

The main purpose of this paper is to apply the notion of hierarchical control to a coupled degenerate non linear parabolic equations. We use the Stackelberg-Nash strategy with one leader and two followers. The followers solve a Nash…

Combinatorics · Mathematics 2023-01-16 Landry Djomegne , Cyrille Kenne , René Dorville , Pascal Zongo

We study null controllability for the parabolic equation on $\mathbb{S}^{2}$ endowed with its canonical almost-Riemannian structure. For a spherical crown $\omega=\{\alpha<x_3<\beta\}$, where $0\le \alpha<\beta\le1$, we prove the sharp…

Analysis of PDEs · Mathematics 2026-04-22 Cyprien Tamekue

In this paper, we present a new Carleman estimate for the adjoint equations associated to a class of super strong degenerate parabolic linear problems. Our approach considers a standard geometric imposition on the control domain, which can…

Analysis of PDEs · Mathematics 2022-04-22 Bruno S. V. Araújo , Reginaldo Demarque , Luiz Viana

In this paper we use a Stackelberg-Nash strategy to show the local null controllability of a semilinear parabolic equation in one-dimension defined in a non-cylindrical domain where the diffusion coefficient degenerates at one point of the…

Analysis of PDEs · Mathematics 2025-10-02 Alfredo S. Gamboa , Juan Limaco , Luis P. Yapu

We establish the null controllability for linear stochastic fourth order parabolic equations. Utilizing the duality argument, the null controllability is reduced to the observability for backward fourth order stochastic parabolic equations,…

Optimization and Control · Mathematics 2022-06-07 Qi Lü , Yu Wang

We study several controllability properties for some semilinear parabolic PDE with a quadratic gradient term. For internal distributed controls, it is shown that the system is approximately and null controllable. The proof relies on the…

Optimization and Control · Mathematics 2012-02-06 Luis A. Fernández

We study the controllability of a class of $N$-dimensional degenerate parabolic equations with single interior point degeneracy. We employ the Galerkin method to prove the existence of solutions for the equations. The analysis is then…

Optimization and Control · Mathematics 2024-07-18 Yuanhang Liu , Yaozhong Hu , Weijia Wu , Donghui Yang

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 main goal of this manuscript is to prove the existence of insensitizing controls for the fourth-order dispersive nonlinear Schr\"odinger equation with cubic nonlinearity. To obtain the main result we prove a null controllability…

Analysis of PDEs · Mathematics 2024-06-28 Roberto de A. Capistrano Filho , Thiago Yukio Tanaka

We study the internal controllability of a wave equation with memory in the principal part, defined on the one-dimensional torus $\mathbb{T}=\mathbb{R}/2\pi\mathbb{Z}$. We assume that the control is acting on an open subset…

Analysis of PDEs · Mathematics 2019-01-25 Umberto Biccari , Sorin Micu

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

This paper studies the controllability problem of a parabolic system of chemotaxis. The local exact controllability to trajectories of the system imposed one control force only is obtained by applying Kakutani's fixed point theorem combined…

Optimization and Control · Mathematics 2013-03-20 Bao-Zhu Guo , Liang Zhang

This paper is devoted to studying null controllability for a class of stochastic fourth order semi-discrete parabolic equations, where the spatial variable is discretized with finite difference scheme and the time is kept as a continuous…

Optimization and Control · Mathematics 2024-05-07 Yu Wang , Qingmei Zhao

We study boundary controllability of one-dimensional coupled hyperbolic-parabolic cascades, focusing on the fine structure of reachable sets. The main model is a wave-heat cascade in which a boundary control acts on the wave equation and…

Optimization and Control · Mathematics 2026-01-27 Hugo Lhachemi , Christophe Prieur , Emmanuel Trélat

We are concerned about the controllability of a general linear hyperbolic system of the form $\partial_t w (t, x) = \Sigma(x) \partial_x w (t, x) + \gamma C(x) w(t, x) $ ($\gamma \in \mR$) in one space dimension using boundary controls on…

Optimization and Control · Mathematics 2018-12-05 Jean-Michel Coron , Hoai-Minh Nguyen

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
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