Results 31 to 40 of about 43,954 (320)

About the Resolvent Kernel of Neutral Linear Fractional System with Distributed Delays

open access: yesMathematics, 2022
The present work considers the initial problem (IP) for a linear neutral system with derivatives in Caputo’s sense of incommensurate order, distributed delay and various kinds of initial functions.
Hristo Kiskinov   +2 more
doaj   +1 more source

On the generalized spectrum of bounded linear operators in Banach spaces

open access: yesAIMS Mathematics, 2023
Utilizing the stability characterizations of generalized inverses, we investigate the generalized resolvent of linear operators in Banach spaces. We first prove that the local analyticity of the generalized resolvent is equivalent to the continuity and ...
Jue Feng , Xiaoli Li, Kaicheng Fu
doaj   +1 more source

Unique solvability of boundary value problem for functional differential equations with involution

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper we consider a boundary value problem for systems of Fredholm type integral-differential equations with involutive transformation, containing derivative of the required function on the right-hand side under the integral sign.
K.Zh. Nazarova, K.I. Usmanov
doaj   +1 more source

On non-normality and classification of amplification mechanisms in stability and resolvent analysis [PDF]

open access: yes, 2017
We seek to quantify non-normality of the most amplified resolvent modes and predict their features based on the characteristics of the base or mean velocity profile.
Dawson, Scott T. M.   +3 more
core   +3 more sources

Separability of the third-order differential operator given on the whole plane

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
In this paper, in the space L2(R2), we study a third-order differential operator with continuous coefficients in R (-∞ , +∞). Here, these coefficients can be unlimited functions at infinity.
A.O. Suleimbekova
doaj   +1 more source

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

Resolvability and Strong Resolvability in the Direct Product of Graphs [PDF]

open access: yesResults in Mathematics, 2016
Given a connected graph $G$, a vertex $w\in V(G)$ distinguishes two different vertices $u,v$ of $G$ if the distances between $w$ and $u$ and between $w$ and $v$ are different. Moreover, $w$ strongly resolves the pair $u,v$ if there exists some shortest $u-w$ path containing $v$ or some shortest $v-w$ path containing $u$.
Dorota Kuziak   +2 more
openaire   +3 more sources

Iterative Methods for Computing the Resolvent of Composed Operators in Hilbert Spaces

open access: yesMathematics, 2019
The resolvent is a fundamental concept in studying various operator splitting algorithms. In this paper, we investigate the problem of computing the resolvent of compositions of operators with bounded linear operators.
Yixuan Yang, Yuchao Tang, Chuanxi Zhu
doaj   +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 study of resolvent set for a class of band operators with matrix elements

open access: yesConcrete Operators, 2016
For operators generated by a certain class of infinite three-diagonal matrices with matrix elements we establish a characterization of the resolvent set in terms of polynomial solutions of the underlying second order finite-difference equations.
Osipov Andrey
doaj   +1 more source

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