Results 31 to 40 of about 1,713,872 (237)

Null controllability of nonlinear convective heat equations [PDF]

open access: yes, 2000
summary:In this paper, we prove the exact null controllability of certain diffusion system by rewriting it as an equivalent nonlinear parabolic integrodifferential equation with variable coefficients in a bounded interval of $\mathbb R$ with a ...
Park, Jong-Yeoul   +7 more
core   +1 more source

The Time-Optimal Control Problem of a Kind of Petrowsky System

open access: yesMathematics, 2019
In this paper, we consider the time-optimal control problem about a kind of Petrowsky system and its bang-bang property. To solve this problem, we first construct another control problem, whose null controllability is equivalent to the controllability of
Dongsheng Luo   +3 more
doaj   +1 more source

Nonequivalence of Controllability Properties for Piecewise Linear Markov Switch Processes *

open access: yesESAIM: Proceedings and Surveys, 2017
In this paper we study the exact null-controllability property for a class of controlled PDMP of switch type with switch-dependent, piecewise linear dynamics and multiplicative jumps.
Goreac Dan
doaj   +1 more source

Null-controllability properties of the generalized two-dimensional Baouendi-Grushin equation with non-rectangular control sets

open access: yes, 2022
We consider the null-controllability problem for the generalized Baouendi-Grushin equation $(\partial_t - \partial_x^2 - q(x)^2\partial_y^2)f = 1_\omega u$ on a rectangular domain.
Royer, Julien   +2 more
core   +2 more sources

Evaluation of vehicle maneuverability based on controllability region analysis (An algorithm for controllability region computation and effects of tire force characteristics on the controllability region)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
This paper proposes an analytical method to evaluate vehicle maneuverability based on the comparison of null-controllability regions that are defined as the set of all initial states which can be transferred to the origin of the state space by means of ...
Shinichiro HORIUCHI
doaj   +1 more source

Exact Null Controllability of a One-Dimensional Wave Equation with a Mixed Boundary

open access: yesMathematics, 2023
In this paper, exact null controllability of one-dimensional wave equations in non-cylindrical domains was discussed. It is different from past papers, as we consider boundary conditions for more complex cases.
Lizhi Cui, Jing Lu
doaj   +1 more source

Null controllability of a system of viscoelasticity with a moving control

open access: yesJournal de Mathématiques Pures et Appliquées, 2014
In this paper, we consider the wave equation with both a viscous Kelvin-Voigt and frictional damping as a model of viscoelasticity in which we incorporate an internal control with a moving support. We prove the null controllability when the control region, driven by the flow of an ODE, covers all the domain.
Chaves, Felipe   +2 more
openaire   +4 more sources

On the Output Controllability of Positive Discrete Linear Delay Systems

open access: yesAbstract and Applied Analysis, 2017
Necessary and sufficient conditions for output reachability and null output controllability of positive linear discrete systems with delays in state, input, and output are established.
Mouhcine Naim   +3 more
doaj   +1 more source

Null-controllability of one-dimensional parabolic equations [PDF]

open access: yes, 2007
We prove the interior null-controllability of one-dimensional parabolic equations with time independent measurable coefficients.
Alessandrini, Giovanni   +4 more
core   +1 more source

Local Null Controllability of a 1D Stefan Problem [PDF]

open access: yesBulletin of the Brazilian Mathematical Society, New Series, 2018
The purpose of this article is to give a new proof of a null controllability result for a 1D free-boundary problem of the Stefan kind for a heat PDE. We introduce a method based on local inversion that, in contrast with other previous arguments, does not rely on any compactness property and can be generalized to higher dimensions.
E. Fernández-Cara   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy