Results 21 to 30 of about 2,629 (265)

Controlled approximation and a characterization of the local approximation order [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
The local approximation order from a scale ( S h
de Boor, C., Jia, R.-Q.
openaire   +1 more source

Finite-approximate controllability of Hilfer fractional evolution equations of Sobolev type with nonlocal conditions

open access: yes上海师范大学学报. 自然科学版, 2020
We discuss the finite-approximate controllability of Hilfer fractional evolution equations of Sobolev type with nonlocal conditions in Hilbert spaces.With the assumption that the corresponding linear system is approximately controllable,we obtain ...
WANG Xingzhao   +3 more
doaj   +1 more source

Discussion on the Approximate Controllability of Hilfer Fractional Neutral Integro-Differential Inclusions via Almost Sectorial Operators

open access: yesFractal and Fractional, 2022
This paper focuses on the approximate controllability of Hilfer fractional neutral Volterra integro-differential inclusions via almost sectorial operators.
Chandrabose Sindhu Varun Bose   +4 more
doaj   +1 more source

Results on the approximate controllability of Atangana-Baleanu fractional stochastic delay integrodifferential systems

open access: yesAlexandria Engineering Journal, 2023
The approximate controllability results of Atangana-Baleanu fractional stochastic integrodifferential systems with infinite delay are the topic of this paper.
M. Johnson   +5 more
doaj   +1 more source

Control of the Toycopter Using a Flat Approximation [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2008
This paper considers a helicopter-like setup called the Toycopter. Its particularities reside first in the fact that the toycopter motion is constrained to remain on a sphere and second in the use of a variable rotational speed of the propellers to vary the propeller thrust. A complete model using Lagrangian mechanics is derived. The Toycopter is shown
Philippe Müllhaupt   +3 more
openaire   +3 more sources

Schauder’s fixed-point theorem in approximate controllability problems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2016
The main objective of this article is to present the state of the art concerning approximate controllability of dynamic systems in infinite-dimensional spaces.
Babiarz Artur   +2 more
doaj   +1 more source

Approximating with Lipschitz Controls

open access: yesJournal of Approximation Theory, 2000
The author considers nonlinear nonconvex control systems of the form \(x'(t) = f(x(t),u(t))\) where \(u(t)\) belongs to a connected subset \(\Omega\) of a compact metric space. Introducing two families of time-dependent controls, the measurable one and the Lipschitz one, for a given initial value \(x\in \mathbb{R}^n\), the author estimates the distance
openaire   +2 more sources

A note on the approximate controllability of second-order integro-differential evolution control systems via resolvent operators

open access: yesAdvances in Difference Equations, 2021
The approximate controllability of second-order integro-differential evolution control systems using resolvent operators is the focus of this work. We analyze approximate controllability outcomes by referring to fractional theories, resolvent operators ...
Velusamy Vijayakumar   +4 more
doaj   +1 more source

Hilfer fractional neutral stochastic Sobolev-type evolution hemivariational inequality: Existence and controllability☆

open access: yesAin Shams Engineering Journal, 2023
This paper discusses the approximate controllability of hemivariational inequalities of the Sobolev-type Hilfer fractional neutral stochastic evolution system.
Yong-Ki Ma   +5 more
doaj   +1 more source

A deterministic criterion for approximate controllability of stochastic differential equations with jumps

open access: yesResults in Applied Mathematics
This paper investigates the approximate controllability and approximate null controllability of a class of linear stochastic systems driven by Gaussian random measures.
Junfei Guo   +3 more
doaj   +1 more source

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