Results 31 to 40 of about 28,261 (286)

Existence of Mild Solutions for Multi-Term Time-Fractional Random Integro-Differential Equations with Random Carathéodory Conditions

open access: yesAxioms, 2021
In this paper, we investigate the existence of mild solutions to a multi-term fractional integro-differential equation with random effects. Our results are mainly relied upon stochastic analysis, Mönch’s fixed point theorem combined with a random fixed ...
Amadou Diop, Wei-Shih Du
doaj   +1 more source

Approximate controllability of non-instantaneous impulsive stochastic integrodifferential equations driven by Rosenblatt process via resolvent operators

open access: yesCubo, 2023
In this work, we investigate the existence of a mild solution and the approximate controllability of non-instantaneous impulsive stochastic integrodifferential equations driven by the Rosenblatt process in Hilbert space with the Hurst parameter \(\mathsf{
Essozimna Kpizim   +4 more
doaj   +1 more source

A reduced-order model of three-dimensional unsteady flow in a cavity based on the resolvent operator [PDF]

open access: yes, 2016
A novel reduced-order model for nonlinear flows is presented. The model arises from a resolvent decomposition in which the nonlinear advection terms of the Navier-Stokes equation are considered as the input to a linear system in Fourier space.
Blackburn, HM   +4 more
core   +2 more sources

Spectral Gaps for Periodic Elliptic Operators with High Contrast: an Overview [PDF]

open access: yes, 2002
We discuss the band-gap structure and the integrated density of states for periodic elliptic operators in the Hilbert space $L_2(\R^m)$, for $m \ge 2$.
Hempel, Rainer, Post, Olaf
core   +2 more sources

On the relevance of Reynolds stresses in resolvent analyses of turbulent wall-bounded flows

open access: yes, 2019
The ability of linear stochastic response analysis to estimate coherent motions is investigated in turbulent channel flow at friction Reynolds number Re$_\tau$ = 1007.
Cossu, Carlo   +3 more
core   +1 more source

Norm-resolvent convergence of one-dimensional high-contrast periodic problems to a Kronig-Penney dipole-type model

open access: yes, 2015
We prove operator-norm resolvent convergence estimates for one-dimensional periodic differential operators with rapidly oscillating coefficients in the non-uniformly elliptic high-contrast setting, which has been out of reach of the existing ...
Cherednichenko, Kirill D.   +1 more
core   +1 more source

(a,k)-Regularized C-Resolvent Families: Regularity and Local Properties

open access: yesAbstract and Applied Analysis, 2009
We introduce the class of (local) (a,k)-regularized C-resolvent families and discuss its basic structural properties. In particular, our analysis covers subjects like regularity, perturbations, duality, spectral properties and subordination principles ...
Marko Kostic
doaj   +1 more source

Approximation solvability for a system of implicit nonlinear variational inclusions with Η-monotone operators

open access: yesDemonstratio Mathematica, 2018
In this paper, we introduce and study a new system of variational inclusions which is called a system of nonlinear implicit variational inclusion problems with A-monotone and H-monotone operators in semi-inner product spaces.
Kim Jong Kyu, Bhat Muhammad Iqbal
doaj   +1 more source

Temporally Resolved Fluctuation Analysis of Sleep ECG [PDF]

open access: yesJournal of Biological Physics, 2007
The correlation behavior in the heart beat rate significantly differs with respect to light sleep, deep sleep, and REM sleep. We investigate whether fluctuations of the heart beat rhythm may serve as a surrogate parameter for rapidly changing sleep phenomena, and if these changes are accessible by progressive beat-by-beat analysis of the sleep ...
Stefan, Telser   +6 more
openaire   +2 more sources

Analysis of behavioral flow resolves latent phenotypes

open access: yesNature Methods, 2023
Abstract Preclinical biomedical research depends on accurately detecting and quantifying rodent behavior. Current data-driven approaches, which segment free exploratory behavior into clusters, suffer from low statistical power due to multiple-testing, exhibit poor transferability across experiments, and fail to exploit the rich behavioral ...
Lukas M. von Ziegler   +7 more
openaire   +4 more sources

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