Results 11 to 20 of about 4,312,015 (293)

Partially Coherent Direct Sum Channels [PDF]

open access: yesQuantum, 2021
We introduce $\textit{Partially Coherent Direct Sum}$ (PCDS) quantum channels, as a generalization of the already known $\textit{Direct Sum}$ quantum channels.
Stefano Chessa, Vittorio Giovannetti
doaj   +8 more sources

Direct sum matrix game with prisoner's dilemma and snowdrift game. [PDF]

open access: yesPLoS ONE, 2013
A direct sum form is proposed for constructing a composite game from two 2 x 2 games, prisoner's dilemma and snowdrift game. This kind of direct sum form game is called a multiple roles game.
Chengzhang Ma   +4 more
doaj   +2 more sources

Entropic Uncertainty Relations via Direct-Sum Majorization Relation for Generalized Measurements [PDF]

open access: yesEntropy, 2019
We derive an entropic uncertainty relation for generalized positive-operator-valued measure (POVM) measurements via a direct-sum majorization relation using Schur concavity of entropic quantities in a finite-dimensional Hilbert space.
Kyunghyun Baek, Hyunchul Nha, Wonmin Son
doaj   +2 more sources

Spectrum of the direct sum of operators [PDF]

open access: yesElectronic Journal of Differential Equations, 2012
We study the connection between spectral properties of direct the sum of operators in the direct sum of Hilbert spaces and its coordinate operators.
Elif Otkun Cevik, Zameddin I. Ismailov
doaj   +3 more sources

New Direct Sum Tests [PDF]

open access: yesCoRR
A function f:[n]^{d} → ₂ is a direct sum if there are functions L_i:[n] → ₂ such that f(x) = ∑_i L_i(x_i). In this work we give multiple results related to the property testing of direct sums.
Zheng, Kai Zhe   +2 more
core   +6 more sources

Extended Weyl-Type Theorems for Direct Sums

open access: yesDemonstratio Mathematica, 2014
In this paper, we study the stability of extended Weyl and Browdertype theorems for orthogonal direct sum S⊕T, where S and T are bounded linear operators acting on Banach space.
Berkani M., Kachad M., Zariouh H.
doaj   +3 more sources

Pseudospectra of the direct sum of linear operators in ultrametric Banach spaces

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
In this paper, a characterization of essential pseudospectra of bounded linear operators on ultrametric Banach spaces over a spherically complete field was given and the notions of pseudospectra and condition pseudospectra of the direct sum of linear ...
J. Ettayb
doaj   +2 more sources

Distributive lattices with strong endomorphism kernel property as direct sums [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
Unbounded distributive lattices which have strong endomorphism kernel property (SEKP) introduced by Blyth and Silva in [3] were fully characterized in [11] using Priestley duality (see Theorem  2.8}). We shall determine the structure of special elements (
Jaroslav Gurican
doaj   +1 more source

Cross-age Face Recognition Method Based on Feature Subspace Direct Sum [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2021
To solve cross-age face recognition tasks, this paper introduces the direct sum module on the basis of the multi-task convolutional neural network that simultaneously performs two tasks of face recognition and age classification, and proposes the feature
Ye Jihua   +3 more
doaj   +1 more source

On reflexivity of direct sums [PDF]

open access: yesProceedings of the American Mathematical Society, 2000
Summary: Necessary and sufficient conditions are presented to insure that the direct sum of two reflexive representations of a finite-dimensional algebra is reflexive, and it is shown that for each such algebra, there is an integer \(k\) such that the direct sum of \(k\) copies of each of its representations is reflexive.
Camillo, V. P., Fuller, K. R.
openaire   +1 more source

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