Search Results - "Balc'h, Kevin Le"
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Global null-controllability for stochastic semilinear parabolic equations
Published in Annales de l'Institut Henri Poincaré. Analyse non linéaire (13-01-2023)“…In this paper we prove the small-time global null-controllability of forward (respectively backward) semilinear stochastic parabolic equations with globally…”
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2
Null-controllability of linear parabolic-transport systems
Published in Journal de l'École polytechnique. Mathématiques (16-04-2020)“…Over the past two decades, the controllability of several examples of parabolic-hyperbolic systems has been investigated. The present article is the beginning…”
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3
Exponential bounds for gradient of solutions to linear elliptic and parabolic equations
Published in Journal of functional analysis (01-09-2021)“…In this paper, we prove global gradient estimates for solutions to linear elliptic and parabolic equations. For a sufficiently smooth bounded convex domain…”
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4
Reachability results for perturbed heat equations
Published in Journal of functional analysis (15-11-2022)“…This work studies the reachable space of infinite dimensional control systems which are null controllable in any positive time, the typical example being the…”
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5
Cost of observability inequalities for elliptic equations in 2-d with potentials and applications to control theory
Published in Communications in partial differential equations (03-04-2023)“…The goal of this article is to obtain observability estimates for non-homogeneous elliptic equations in the presence of a potential, posed on a smooth bounded…”
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6
Null-controllability of cascade reaction-diffusion systems with odd coupling terms
Published in Annales mathématiques Blaise Pascal (2024)“…In this paper, we consider a nonlinear system of two parabolic equations, with a distributed control in the first equation and an odd coupling term in the…”
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7
Local Null-Controllability of a Nonlocal Semilinear Heat Equation
Published in Applied mathematics & optimization (01-10-2021)“…This paper deals with the problem of internal null-controllability of a heat equation posed on a bounded domain with Dirichlet boundary conditions and…”
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8
Local controllability of the one-dimensional nonlocal Gray–Scott model with moving controls
Published in Journal of evolution equations (01-12-2021)“…In this paper, we prove the local controllability to positive constant trajectories of a nonlinear system of two coupled ODE equations, posed in the…”
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9
Statistical null-controllability of stochastic nonlinear parabolic equations
Published in Stochastic partial differential equations : analysis and computations (01-03-2022)“…In this paper, we consider forward stochastic nonlinear parabolic equations with a control localized in the drift term. Under suitable assumptions, we prove…”
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10
Numerical schemes for the aggregation equation with pointy potentials
Published in ESAIM. Proceedings and surveys (2019)“…The aggregation equation is a nonlocal and nonlinear conservation law commonly used to describe the collective motion of individuals interacting together. When…”
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11
Null-controllability of linear parabolic-transport systems
Published 11-09-2019“…Journal de l'\'Ecole Polytechnique 7, 2020, pp. 743-802 Over the past two decades, the controllability of several examples of parabolic-hyperbolic systems has…”
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12
Statistical null-controllability of stochastic nonlinear parabolic equations
Published 24-09-2020“…In this paper, we consider forward stochastic nonlinear parabolic equations, with a control localized in the drift term. Under suitable assumptions, we prove…”
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13
Sharp local Bernstein estimates for Laplace eigenfunctions on Riemannian manifolds
Published 23-06-2024“…This actual version contains a bad mistake, located in Section 2.3 that invalidates the proofs of the main results…”
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14
Quantitative propagation of smallness and spectral estimates for the Schr\"odinger operator
Published 22-03-2024“…In this paper, we investigate quantitative propagation of smallness properties for the Schr\"odinger operator on a bounded domain in $\mathbb R^d$. We extend…”
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15
Global stabilization of the cubic defocusing nonlinear Schr\"odinger equation on the torus
Published 16-10-2023“…In this article, we prove the (uniform) global exponential stabilization of the cubic defocusing Schr\"odinger equation on the torus d-dimensional torus, for…”
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16
Observability estimates for the Schr{\"o}dinger equation in the plane with periodic bounded potentials from measurable sets
Published 17-04-2023“…The goal of this article is to obtain observability estimates for Schr{\"o}dinger equations in the plane R 2. More precisely, considering a 2$\pi$Z 2-periodic…”
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17
Schr{\"o}dinger eigenfunctions sharing the same modulus and applications to the control of quantum systems
Published 13-03-2024“…In this paper we investigate when linearly independent eigenfunctions of the Schr\''odinger operator may have the same modulus. General properties are…”
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18
Quantitative unique continuation for real-valued solutions to second order elliptic equations in the plane
Published 31-12-2023“…In this article, we study a quantitative form of the Landis conjecture on exponential decay for real-valued solutions to second order elliptic equations with…”
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19
Exponential bounds for gradient of solutions to linear elliptic and parabolic equations
Published 08-06-2020“…In this paper, we prove global gradient estimates for solutions to linear elliptic and parabolic equations. For a sufficiently smooth bounded convex domain…”
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20
Approximate controllability of the linearized Boussinesq system in a two dimensional channel
Published 27-12-2019“…In this paper, we prove an approximate controllability result for the linearized Boussinesq system around a fluid at rest, in a two dimensional channel, when…”
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