Results 21 to 30 of about 19,234 (260)

Controllability of nonlocal second-order impulsive neutral stochastic functional integro-differential equations with delay and Poisson jumps

open access: yesCogent Engineering, 2015
The current paper is concerned with the controllability of nonlocal second-order impulsive neutral stochastic functional integro-differential equations with infinite delay and Poisson jumps in Hilbert spaces.
Diem Dang Huan, Hongjun Gao
doaj   +1 more source

Stochastic Lotka–Volterra system with infinite delay

open access: yesJournal of Computational and Applied Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xu, Yong, Wu, Fuke, Tan, Yimin
openaire   +2 more sources

Reduction theories elucidate the origins of complex biological rhythms generated by interacting delay-induced oscillations. [PDF]

open access: yesPLoS ONE, 2011
Time delay is known to induce sustained oscillations in many biological systems such as electroencephalogram (EEG) activities and gene regulations. Furthermore, interactions among delay-induced oscillations can generate complex collective rhythms, which ...
Ikuhiro Yamaguchi   +4 more
doaj   +1 more source

Linearization for Difference Equations with Infinite Delay

open access: yes, 2023
In this article, we construct a conjugacy map for a linear difference equation with infinite delay and corresponding nonlinear perturbation. We also prove that the conjugacy map is one-one with some additional conditions. As an application of our result, we show that the cases of (uniform) exponential dichotomy follow from our result.
openaire   +3 more sources

Discretisation of an infinite delay equation [PDF]

open access: yesMathematics of Computation, 2006
The paper considers delay differential equations with an infinite number of delays, tending to infinity: \[ \dot x(t)=ax(t)+\sum_{k=1}^{\infty}b_kx(t-\tau_k), \] where \(\tau_k\to\infty\) for \(k\to\infty\). The sequence \(b_k\) is assumed to be in \(l^1\) and the initial value (a function on \((-\infty,0]\)) is continuous but not necessary bounded or ...
openaire   +2 more sources

Stability and Boundedness of Stochastic Volterra Integrodifferential Equations with Infinite Delay

open access: yesJournal of Applied Mathematics, 2013
We make the first attempt to discuss stability and boundedness of solutions to stochastic Volterra integrodifferential equations with infinite delay (IDSVIDEs).
Chunmei Zhang, Wenxue Li, Ke Wang
doaj   +1 more source

Nonlinear volterra equations with infinite delay

open access: yesMonatshefte f�r Mathematik, 1977
This paper is concerned with the existence and stability of nonlinear Volterra equations which have infinite delay and are of the form: $$x (\varphi ) (t) = W (t, \tau ) \varphi (0) + \int\limits_\tau ^t {W (t, s)} F(s,x_s (\varphi )) ds, x_\tau (\varphi ) = \varphi \in C_u .$$
openaire   +1 more source

Approximate Controllability of Fractional Neutral Evolution Equations in Banach Spaces

open access: yesAbstract and Applied Analysis, 2013
We discuss the approximate controllability of semilinear fractional neutral differential systems with infinite delay under the assumptions that the corresponding linear system is approximately controllable.
N. I. Mahmudov
doaj   +1 more source

Stability of Distributed Delay System with Infinite Support [PDF]

open access: yes2018 IEEE Conference on Decision and Control (CDC), 2018
This paper is devoted to the stability analysis of infinite distributed delay systems. The basic idea is to model the original time-delay system into an interconnected feedback system in order to use robust analysis and especially quadratic separation. This approach has been widely used to study classical pointwise time-delay system.
Ariba, Yassine   +3 more
openaire   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

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