Results 11 to 20 of about 700,958 (287)

Behavioral Controllability of Delay-Differential Systems [PDF]

open access: yesSIAM Journal on Control and Optimization, 1997
The authors characterize controllability of time-invariant, linear, delay-differential systems \[ R\left(\frac {d} {dt}, \Delta\right) w=0, \] where \(\Delta\) denotes the unit delay operator and \(R(\cdot,\cdot)\) denotes a 2D polynomial matrix with real coefficients.
Rocha, P, Willems, JC
openaire   +3 more sources

Relative Controllability of ψ-Caputo Fractional Neutral Delay Differential System

open access: yesFractal and Fractional, 2023
The aim of this work is to analyze the relative controllability and Ulamn–Hyers stability of the ψ-Caputo fractional neutral delay differential system.
Kothandapani Muthuvel   +2 more
doaj   +1 more source

The controllability of nonlinear fractional differential system with pure delay

open access: yesAdvances in Difference Equations, 2020
In this study, we are currently investigating the controllability of nonlinear fractional differential control systems with delays in the state function.
Musarrat Nawaz, Wei Jiang, Jiale Sheng
doaj   +1 more source

An NPZ Model with State-Dependent Delay due to Size-Structure in Juvenile Zooplankton [PDF]

open access: yes, 2015
The study of planktonic ecosystems is important as they make up the bottom trophic levels of aquatic food webs. We study a closed Nutrient-Phytoplankton-Zooplankton (NPZ) model that includes size structure in the juvenile zooplankton.
Campbell, S. A.   +2 more
core   +2 more sources

Equivalence and Reduction of Delay-Differential Systems [PDF]

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2007
Equivalence and Reduction of Delay-Differential SystemsA new direct method is presented which reduces a given high-order representation of a control system with delays to a first-order form that is encountered in the study of neutral delay-differential systems.
openaire   +2 more sources

A system of abstract measure delay differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2003
In this paper existence and uniqueness results for an abstract measure delay differential equation are proved, by using Leray-Schauder nonlinear alternative, under Carathéodory conditions.
Bapurao Dhage   +2 more
doaj   +1 more source

On the Relation of Delay Equations to First-Order Hyperbolic Partial Differential Equations [PDF]

open access: yes, 2013
This paper establishes the equivalence between systems described by a single first-order hyperbolic partial differential equation and systems described by integral delay equations.
Karafyllis, Iasson, Krstic, Miroslav
core   +1 more source

On the Controllability of Delay-Differential Systems [PDF]

open access: yesSIAM Journal on Control, 1967
Controllability type applicable to optimal control problems for systems described by delay differential ...
openaire   +2 more sources

Finite Time Stability of 2D Fractional Hyperbolic System with Time Delay

open access: yesJournal of Function Spaces, 2022
In this work, a class of two-dimensional fractional hyperbolic differential linear system (2D-FHDLS) with time delay is investigated. By using generalized Gronwall’s inequality, sufficient conditions for the finite time stability (FTS) of two-dimensional
Abdellatif Ben Makhlouf   +3 more
doaj   +1 more source

Exponential Stability for a Class of Linear Delay Differential Systems Under Logic Impulsive Control

open access: yesIEEE Access, 2021
This paper is concerned with the exponential stability for a class of linear delay differential systems under logic impulsive control. Based on logic impulsive control, the strong constraint that the coefficient functions of this kind of linear delay ...
Chunxiang Li
doaj   +1 more source

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