Results 11 to 20 of about 659,470 (267)

GMRES and Integral Operators [PDF]

open access: yesSIAM Journal on Scientific Computing, 1996
The purpose of this paper is to show how the generalized minimal residual (GMRES) method can be modified to incorporate Nyström interpolation at a small cost in both computational effort and algorithmic complexity. The result is an algorithm that has the convergence property of Broyden's method.
Carl T. Kelley, Z. Q. Xue
openaire   +1 more source

Integral $K$-Operator Frames for $End_{\mathcal{A}}^{\ast}(\mathcal{H})$ [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
In this work, we introduce a new concept of integral $K$-operator frame for the set of all adjointable operators from a Hilbert $C^{\ast}$-module $\mathcal{H}$ to  itself denoted by $End_{\mathcal{A}}^{\ast}(\mathcal{H}) $.
Hatim Labrigui, Samir Kabbaj
doaj   +1 more source

Regularized Asymptotic Solutions of a Singularly Perturbed Fredholm Equation with a Rapidly Varying Kernel and a Rapidly Oscillating Inhomogeneity

open access: yesAxioms, 2022
This article investigates an equation with a rapidly oscillating inhomogeneity and with a rapidly decreasing kernel of an integral operator of Fredholm type.
Dana Bibulova   +2 more
doaj   +1 more source

A characterization for $B$-singular integral operator and its commutators on generalized weighted $B$-Morrey spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
We study the maximal operator $M_{\gamma}$ and the singular integral operator $A_{\gamma}$, associated with the generalized shift operator. The generalized shift operators are associated with the Laplace-Bessel differential operator.
J.J. Hasanov, I. Ekincioglu, C. Keskin
doaj   +1 more source

A Univalence Preserving Integral Operator

open access: yesJournal of Inequalities and Applications, 2008
We define an integral operator denoted by I, and we give sufficient conditions such that F=I(f1,f2,…,fm) is univalent.
Georgia Irina Oros
doaj   +2 more sources

Fractional Minkowski-Type Integral Inequalities via the Unified Generalized Fractional Integral Operator

open access: yesJournal of Function Spaces, 2022
This paper is aimed at presenting the unified integral operator in its generalized form utilizing the unified Mittag-Leffler function in its kernel. We prove the boundedness of this newly defined operator.
Tingmei Gao   +4 more
doaj   +1 more source

Operators with an integral reprsentation [PDF]

open access: yesProceedings of the American Mathematical Society, 2016
We introduce a fairly large class of bounded linear operators between Banach spaces which admit an integral representation. It turns out that an operator belongs to this class if and only if it factors through a
CILIA, Raffaela Giovanna, Gutierrez JM
openaire   +1 more source

BCR algorithm and the $T(b)$ theorem [PDF]

open access: yes, 2007
We show using the Beylkin-Coifman-Rokhlin algorithm in the Haar basis that any singular integral operator can be written as the sum of a bounded operator on $L^p ...
Auscher, Pascal, Yang, Qi Xiang
core   +3 more sources

A boundedness result for Marcinkiewicz integral operator

open access: yesOpen Mathematics, 2020
We extend a boundedness result for Marcinkiewicz integral operator. We find a new space of radial functions for which this class of singular integral operators remains Lp{L}^{p}-bounded when its kernel satisfies only the sole integrability condition.
Hawawsheh Laith, Abudayah Mohammad
doaj   +1 more source

Unified treatment of fractional integral inequalities via linear functionals [PDF]

open access: yes, 2016
In the paper we prove several inequalities involving two isotonic linear functionals. We consider inequalities for functions with variable bounds, for Lipschitz and H\" older type functions etc.
Bombardelli, Mea   +2 more
core   +2 more sources

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