Results 91 to 100 of about 1,296 (214)
On a conjecture about MRA Riesz wavelet basis
, 2004 . Let φ be a compactly supported refinable function in L2(R) such that the shifts of φ are stable and ˆ φ(2ξ) = â(ξ) ˆ φ(ξ) for a 2π-periodic trigonometric polynomial â. A wavelet function ψ can be derived from φ by ˆ ψ(2ξ):= e −iξ â(ξ + π) ˆ φ(ξ). If
Bin Han
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An Explicit Structure for Duals of Frames in Krein Spaces [PDF]
Sahand Communications in Mathematical AnalysisIn this study, motivating the explanation of Esmeral, Ferrer, and Wagner, similar findings regarding frames in Hilbert spaces were attempted to be extended to Krein spaces.
Elnaz Osgooei, Asghar Rahimi
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© Hindawi Publishing Corp. RIESZ BASIS PROPERTY OF TIMOSHENKO BEAMS WITH BOUNDARY FEEDBACK CONTROL
, 2001 A Timoshenko beam equation with boundary feedback control is considered. By an abstract result on the Riesz basis generation for the discrete operators in the Hilbert spaces, we show that the closed-loop system is a Riesz system, that is, the sequence of
De-xing Feng, Gen-qi Xu, Siu-pang Yung
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Electronic Journal of Differential Equations, 2015 This article concerns the Riesz basis property and the stability of a damped Euler-Bernoulli beam with nonuniform thickness or density, that is clamped at one end and is free at the other.
K. Augustin Toure +2 more
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Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017 We study the boundary-value problem for a linear system of differential equations written in the form of differential-operator equations $$ aD_t u(t)+bBu(t)=f(t) $$ with nonlocal boundary conditions at $t$.
Dmitriy V Kornienko
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Control of Wave and Beam PDEs [electronic resource] : The Riesz Basis Approach /
Control of Wave and Beam PDEs is a concise, self-contained introduction to Riesz bases in Hilbert space and their applications to control systems described by partial differential equations (PDEs).
SpringerLink (Online service) +2 more
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Continuous Riesz bases in Hilbert C*-modules
, 2022 The paper is devoted to continuous frames and Riesz bases in Hilbert C*-modules. we define a continuous Riesz basis for Hilbert C*-modules and give some results about them.Comment: arXiv admin note: substantial text overlap with arXiv:2208 ...
Ghasemi, Hadi, Shateri, Tayebe Lal
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Riesz bases of exponentials for finite unions of intervals [PDF]
, 2022 I denne oppgaven studerer vi Riesz-basiser av eksponentialfunksjoner for rommet $L^2(\Omega)$, der $\Omega \subset \bb{R}^d$. Hovedfokuset i oppgaven er å presentere Kozma og Nitzan sitt bevis for at det finnes en Riesz-basis av eksponentialfunksjoner ...
Instanes, Sarah May
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On the Riesz Basisness of Systems Composed of Root Functions of Periodic Boundary Value Problems
Abstract and Applied Analysis, 2015 We consider the nonself-adjoint Sturm-Liouville operator with q∈L1[0,1] and either periodic or antiperiodic boundary conditions. We obtain necessary and sufficient conditions for systems of root functions of these operators to be a Riesz basis in L2[0,1]
Alp Arslan Kıraç
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The nonlocal problem for the differential-operator equation of the even order with the involution
Karpatsʹkì Matematičnì Publìkacìï, 2018 In this paper, the problem with boundary nonself-adjoint conditions for a differential-operator equations of the order $2n$ with involution is studied. Spectral properties of operator of the problem is investigated.
Ya.O. Baranetskij +3 more
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