Results 11 to 20 of about 354 (150)

Noncommutative decomposition theorems in Riesz spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We show that an additive function defined on an orthomodular poset and taking its values in the positive cone of a normed Riesz space admits a Lebesgue Decomposition and a Yosida-Hewitt Decomposition.
DE LUCIA, PAOLO, MORALES P.
openaire   +2 more sources

No-Reference Quality Assessment of Noise-Distorted Images Based on Frequency Mapping

open access: yesIEEE Access, 2017
In this paper, we propose a no-reference image quality assessment (IQA) metric for noisedistorted images specifically based on frequency mapping (FM), namely, FMIQA index.
Guangyi Yang   +4 more
doaj   +1 more source

Retraction Note: An augmented Riesz decomposition method for sharp estimates of certain boundary value problem

open access: yesBoundary Value Problems, 2020
The Editors-in-Chief have retracted this article [1] because it shows evidence of peer review manipulation and authorship manipulation. In addition, the identity of the corresponding author could not be verified: the University of West Bohemia have ...
Jiaofeng Wang   +2 more
doaj   +1 more source

A Riesz decomposition theorem [PDF]

open access: yesNagoya Mathematical Journal, 1989
The topic of this note is the Riesz decomposition of excessive functions for a “nice” strong Markov process X. I.e. an excessive function is decomposed into a sum of a potential of a measure and a “harmonic” function. Originally such decompositions were studied by G.A. Hunt [8].
openaire   +3 more sources

Double Lacunary Density and Some Inclusion Results in Locally Solid Riesz Spaces

open access: yesAbstract and Applied Analysis, 2013
We define the notions of double statistically convergent and double lacunary statistically convergent sequences in locally solid Riesz space and establish some inclusion relations between them.
S. A. Mohiuddine   +2 more
doaj   +1 more source

Decomposition algebras of Riesz operators [PDF]

open access: yesGlasgow Mathematical Journal, 1980
Let H be a Hilbert space and let B denote the Banach algebra of all bounded linear operators on H with K denoting the closed ideal of compact operators in B. If T ∈ B, σ(T) and r(T) will denote the spectrum and spectral radius of T, respectively, and π the canonical mapping of B onto the Calkin algebra B/K.
Murphy, G. J., West, T. T.
openaire   +2 more sources

Atomic Decomposition of Weighted Lorentz Spaces and Operators

open access: yesJournal of Function Spaces, 2014
We obtain an atomic decomposition of weighted Lorentz spaces for a class of weights satisfying the Δ2 condition. Consequently, we study operators such as the multiplication and composition operators and also provide Hölder’s-type and duality-Riesz type ...
Eddy Kwessi   +3 more
doaj   +1 more source

A new technique to study the boundary behaviors of superharmonic multifunctions and their application

open access: yesBoundary Value Problems, 2017
Using some recent results of the Riesz decomposition method for sharp estimates of certain boundary value problems of harmonic functions in (St. Cer. Mat.
Yong Lu, Jianguo Sun
doaj   +1 more source

Weighted Weak Local Hardy Spaces Associated with Schrödinger Operators

open access: yesJournal of Function Spaces, 2015
We characterize the weighted weak local Hardy spaces Whρp(ω) related to the critical radius function ρ and weights ω∈A∞ρ,∞(Rn) which locally behave as Muckenhoupt’s weights and actually include them, by the atomic decomposition.
Hua Zhu
doaj   +1 more source

RETRACTED ARTICLE: New Riesz representations of linear maps associated with certain boundary value problems and their applications

open access: yesBoundary Value Problems, 2017
In this paper, we obtain new Riesz representations of continuous linear maps associated with certain boundary value problems in the set of all closed bounded convex non-empty subsets of any Banach space. As applications, the Riesz integral representation
Wei Yang   +3 more
doaj   +1 more source

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