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Related papers: Global null-controllability for stochastic semilin…

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The global null controllability of stochastic semilinear parabolic equations with globally Lipschitz nonlinearities has been addressed in recent literature. However, there are no results concerning their numerical approximation and the…

Optimization and Control · Mathematics 2025-03-11 Yu Wang , Qingmei Zhao

In this paper, we study the null controllability of forward and backward stochastic semilinear complex Ginzburg-Landau equations with global Lipschitz nonlinear terms. For this purpose, by deriving an improved global Carleman estimates for…

Optimization and Control · Mathematics 2024-08-07 Sen Zhang , Hang Gao , Ganghua Yuan

In this paper, we study the null controllability for parabolic SPDEs involving both the state and the gradient of the state. To start with, an improved global Carleman estimate for linear forward (resp. backward) parabolic SPDEs with…

Optimization and Control · Mathematics 2025-10-14 Lei Zhang , Fan Xu , Bin Liu

This paper addresses null controllability for both forward and backward linear stochastic parabolic equations by introducing convection terms on the drift parts with bounded coefficients. Moreover, the forward stochastic parabolic equation…

Optimization and Control · Mathematics 2023-11-23 M. Baroun , S. Boulite , A. Elgrou , L. Maniar

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

In this paper, we study the null controllability for a stochastic semilinear CahnHilliard type equation, whose semilinear term contains first and second order derivatives of solutions. To start with, an improved global Carleman estimate for…

Optimization and Control · Mathematics 2024-08-08 Sen Zhang , Hang Gao , Ganghua Yuan

In \cite{LPP:2025}, it was shown that, in arbitrary dimension, the spatial semi-discretization of a controlled stochastic parabolic operator is generically not null-controllable. Nevertheless, $\phi$-null controllability results remain…

Optimization and Control · Mathematics 2026-04-08 Rodrigo Lecaros , Ariel A. Pérez , Manuel F. Prado

This paper aims to establish null controllability for systems coupled by two backward fourth order stochastic parabolic equations. The main goal is to control both equations with only one control act on the drift term. To achieve this, we…

Optimization and Control · Mathematics 2024-04-15 Yu Wang

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 establish the null controllability of forward and backward linear stochastic parabolic equations with linear Robin (or Fourier) boundary conditions. These equations incorporate zero and first order terms with bounded coefficients. To…

Analysis of PDEs · Mathematics 2024-06-13 Said Boulite , Abdellatif Elgrou , Lahcen Maniar

In this paper, we consider forward stochastic nonlinear parabolic equations, with a control localized in the drift term. Under suitable assumptions, we prove the small-time global null-controllability, with a truncated nonlinearity. We also…

Analysis of PDEs · Mathematics 2020-09-28 Victor Hernandez-Santamaria , Kevin Le Balc'h , Liliana Peralta

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 present a null controllability result for a class of stochastic semi-discrete parabolic equations. For this purpose, an observability estimate is established for backward stochastic semi-discrete parabolic equations, with…

Optimization and Control · Mathematics 2024-02-21 Qingmei Zhao

The main objective of this paper is to establish the null controllability for the fourth order semilinear parabolic equations with the nonlinearities involving the state and its gradient up to second order. First of all, based on optimal…

Optimization and Control · Mathematics 2022-11-03 Bo You , F. Li

In this paper, we establish two Carleman estimates for a stochastic degenerate parabolic equation. The first one is for the backward stochastic degenerate parabolic equation with singular weight function. Combining this Carleman estimate…

Optimization and Control · Mathematics 2020-08-26 Bin Wu , Qun Chen , Zewen Wang

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

In this paper we investigate the Hierarchical null controllability of a coupled degenerate semilinear parabolic equation in domains which are moving in time. We show the local null controllability of the semilinear system using Liusternik's…

Analysis of PDEs · Mathematics 2026-02-10 Alfredo S. Gamboa , Juan Limaco , Luis P. Yapu

This paper considers a semi-discrete forward stochastic parabolic operator with homogeneous Dirichlet conditions in arbitrary dimensions. We show the lack of null controllability for a spatial semi-discretization of a null-controllable…

Optimization and Control · Mathematics 2025-08-01 Rodrigo Lecaros , Ariel A. Pérez , Manuel F. Prado

We prove the null controllability of a cascade system of \(n\) coupled backward stochastic parabolic equations involving both reaction and convection terms, as well as general second-order parabolic operators, with \(n \geq 2\). To achieve…

Optimization and Control · Mathematics 2024-11-15 Said Boulite , Abdellatif Elgrou , Lahcen Maniar

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
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