Results 21 to 30 of about 188 (113)

Approximate controllability of impulsive neutral stochastic differentialequations with fractional Brownian motion in a Hilbert space

open access: yesAdvances in Differential Equations, 2014
Approximate controllability for impulsive neutral stochastic functionaldifferential equations with finite delay and fractional Brownian motion in aHilbert space are studied.
H. Ahmed
semanticscholar   +1 more source

APPROXIMATE CONTROLLABILITY OF HILFER FRACTIONAL NEUTRAL STOCHASTIC DIFFERENTIAL EQUATIONS

open access: yesDynamic systems and applications, 2018
In this paper, we investigate the approximate controllability of Hilfer fractional neutral stochastic differential equations. Firstly, the existence and uniqueness of mild solutions for these equations are obtained by means of the Banach contraction ...
Jingyun Lv, Xiaoyuan Yang
semanticscholar   +1 more source

The analysis of exact controllability of neutral type systems by the moment problem approach [PDF]

open access: yes, 2007
Presented also at the 47th IEEE CDCInternational audienceThe problem of exact null-controllability is considered for a wide class of linear neutral-type systems with distributed delay.
Sklyar, Grigory, M., Rabah, Rabah
core   +2 more sources

Carleman estimates and null controllability of a class of singular parabolic equations

open access: yesAdvances in Nonlinear Analysis, 2018
In this paper, we consider control systems governed by a class of semilinear parabolic equations, which are singular at the boundary and possess singular convection and reaction terms.
Du Runmei   +3 more
doaj   +1 more source

Null controllability of nonlocal Hilfer fractional stochastic differential equations

open access: yes, 2017
In this paper, we study exact null controllability of Hilfer fractional semilinear stochastic differential equations in Hilbert spaces. By using fractional calculus and fixed point approach, sufficient conditions of exact null controllability for such ...
Jinrong Jinrong, H. Ahmed
semanticscholar   +1 more source

Finite approximate controllability of Hilfer fractional semilinear differential equations

open access: yes, 2020
In this paper, we investigate the finite approximate controllability of fractional semilinear differential equations involving the Hilfer derivative.
Jinrong Wang, A. Ibrahim, D. O’Regan
semanticscholar   +1 more source

Approximate controllability of fractional impulsive neutral stochastic differential equations with nonlocal conditions

open access: yesBoundary Value Problems, 2013
In this paper, the approximate controllability of fractional impulsive neutral stochastic differential equations with nonlocal conditions and infinite delay in Hilbert spaces is studied.
Yanchao Zang, Junping Li
semanticscholar   +1 more source

Null controllability for a degenerate population model in divergence form via Carleman estimates

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper we consider a degenerate population equation in divergence form depending on time, on age and on space and we prove a related null controllability result via Carleman estimates.
Fragnelli Genni
doaj   +1 more source

CONTROLLABILITY PROPERTIES OF A CLASS OF SYSTEMS MODELING SWIMMING MICROSCOPIC ORGANISMS [PDF]

open access: yes, 2007
We consider a finite-dimensional model for the motion of microscopic organisms whose propulsion exploits the action of a layer of cilia covering its surface.
M. Sigalotti, J. Vivalda
semanticscholar   +1 more source

Minimal driver sets on path and cycle graphs with arbitrary non-zero weights [PDF]

open access: yes, 2022
Let $G$ be a simple, undirected graph on the vertex set $V=\{1,2,\ldots ,n\}$ and let $A$ be the adjacency matrix of $G.$ A non-empty subset $ \{i_{1},i_{2},\ldots ,i_{k}\}$ of $V$ is called a driver set for $G$ if the system $\mathbf{\dot{x}}=A\mathbf{x}
Maks, Johannes G.
core   +1 more source

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