Results 41 to 50 of about 74,529 (281)

Oscillation of odd order neutral delay differential equation [PDF]

open access: yesCzechoslovak Mathematical Journal, 1995
The authors consider the odd-order neutral delay differential equation (1) \((x(t) - \alpha x(t - \tau))^{(n)} + p(t) f(x(t - \sigma)) = 0\), where \(0 \leq \alpha < 1\), \(\tau, \sigma \in (0, \infty)\), \(p \in C ([0, \infty), (0, \infty))\), \(f \in C^1 (\mathbb{R}, \mathbb{R})\) such that \(f\) is increasing, \(xf(x) > 0\) for \(x \neq 0\).
openaire   +3 more sources

Oscillation criteria for second-order neutral delay differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2017
New sufficient conditions for oscillation of second-order neutral half-linear delay differential equations are given. Our results essentially improve, complement and simplify a number of related ones in the literature, especially those from a recent ...
Martin Bohner   +2 more
doaj   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

Stability of Neutral Delay Differential Equations and Their Discretizations [PDF]

open access: yes, 2014
Disertační práce se zabývá asymptotickou stabilitou zpožděných diferenciálních rovnic a jejich diskretizací. V práci jsou uvažovány lineární zpožděné diferenciální rovnice s~konstantním i neohraničeným zpožděním.
Dražková, Jana
core  

Asymptotic properties of the spectrum of neutral delay differential equations

open access: yes, 2009
Spectral properties and transition to instability in neutral delay differential equations are investigated in the limit of large delay. An approximation of the upper boundary of stability is found and compared to an analytically derived exact stability ...
Blyuss, K. B.   +3 more
core   +1 more source

Hands‐on protocol for preparing water‐soluble fractions from agri‐food samples for NMR‐based metabolomics analysis

open access: yesFEBS Open Bio, EarlyView.
This research protocol outlines a workflow for nuclear magnetic resonance (NMR)‐based metabolomics in the agri‐food sector. Using two case studies—strawberry leaves (solid matrix) and wine (liquid matrix)—it details the procedures for sample preparation, data acquisition, and processing.
Andrea Fernández‐Veloso   +4 more
wiley   +1 more source

General Solution of Linear Fractional Neutral Differential Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2013
This paper is concerned with the general solution of linear fractional neutral differential difference equations. The exponential estimates of the solution and the variation of constant formula for linear fractional neutral differential difference ...
Hai Zhang, Jinde Cao, Wei Jiang
doaj   +1 more source

Oscillation of first order neutral delay differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
In this paper, the authors established some new integral conditions for the oscillation of all solutions of nonlinear first order neutral delay differential equations. Examples are inserted to illustrate the results.
John Graef   +2 more
doaj   +1 more source

Interpretation on nonlocal neutral functional differential equations with delay

open access: yesAIMS Mathematics, 2023
This work deals with the existence and continuous dependence of an integral solution for neutral integro-differential equations with a nonlocal condition.
Kottakkaran Sooppy Nisar   +3 more
doaj   +1 more source

Neutral stochastic functional differential equations with Levy jumps under the local Lipschitz condition [PDF]

open access: yes, 2017
In this paper, a general neutral stochastic functional differential equations with infinite delay and Lévy jumps (NSFDEwLJs) is studied. We investigate the existence and uniqueness of solutions to NSFDEwLJs at the phase space Cg under the local ...
Hu, Liangjian, Mao, Wei, Mao, Xuerong
core   +1 more source

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