Results 1 to 10 of about 3,750 (203)

Equivalence bundles over a finite group and strong Morita equivalence for unital inclusions of unital $C^*$-algebras [PDF]

open access: yesMathematica Bohemica, 2022
Let $\mathcal{A}=\{A_t \}_{t\in G}$ and $\mathcal{B}=\{B_t \}_{t\in G}$ be $C^*$-algebraic bundles over a finite group $G$. Let $C=\bigoplus_{t\in G}A_t$ and $D=\bigoplus_{t\in G}B_t$.
Kazunori Kodaka
doaj   +3 more sources

Primary decompositions of unital locally matrix algebras [PDF]

open access: yesBulletin of Mathematical Sciences, 2020
We construct a unital locally matrix algebra of uncountable dimension that (1) does not admit a primary decomposition, (2) has an infinite locally finite Steinitz number. It gives negative answers to questions from [V. M.
Oksana Bezushchak, Bogdana Oliynyk
doaj   +3 more sources

Quantum Weak Invariants: Dynamical Evolution of Fluctuations and Correlations [PDF]

open access: yesEntropy, 2020
Weak invariants are time-dependent observables with conserved expectation values. Their fluctuations, however, do not remain constant in time. On the assumption that time evolution of the state of an open quantum system is given in terms of a completely ...
Zeyi Shi, Sumiyoshi Abe
doaj   +2 more sources

The efficiency of Leguminoceae Production Grains Plus Maize as A Feeding on Growth Phase of Local Swine (Potamochoerus porcus) in Timor-Leste

open access: yesJurnal Peternakan Indonesia, 2022
In Timor Leste, swine Farmers did not yet use legume production grains to maintain feed swine performance and respond to market demand. The research aims to evaluate the Efficiency of Leguminoceae Production grains Plus Maize in feeding on the Growth ...
A. Afonso   +4 more
doaj   +1 more source

A-unital Operations and Quantum Conditional Entropy [PDF]

open access: yesQuantum, 2022
Negative quantum conditional entropy states are key ingredients for information theoretic tasks such as superdense coding, state merging and one-way entanglement distillation.
Mahathi Vempati   +3 more
doaj   +1 more source

On Preserving Properties of Linear Maps on $C^{*}$-algebras [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2020
Let $A$ and $B$ be two unital $C^{*}$-algebras and $varphi:A rightarrow B$ be a linear map. In this paper, we investigate the structure of linear maps between two $C^{*}$-algebras that preserve a certain property or relation.
Fatemeh Golfarshchi   +1 more
doaj   +1 more source

A Remark on Weak Tracial Approximation

open access: yesAxioms, 2023
In this paper, we extend the notion of generalized tracial approximation to the non-unital case. An example of this approximation, which comes from dynamical systems, is also provided.
Xiaochun Fang, Junqi Yang
doaj   +1 more source

Properties of TQ-algebras; pp. 141–148 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2011
Several properties of unital left (right) TQ-algebras are described. The conditions when a unital semitopological algebra is a left (right) TQ-algebra are given.
Mati Abel, Wiesław Żelazko
doaj   +1 more source

(2n+1)-Weak Module Amenability of Triangular Banach Algebras on Inverse Semigroup Algebras [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2021
Let  be a commutative (not necessary unital) inverse semigroup with the set of idempotents  ‎then  is a commutative Banach‎ -module with canonical actions‎.
Ebrahim Nasrabadi   +2 more
doaj   +1 more source

Linear Maps Preserving Invertibility or Spectral Radius on Some $C^{*}$-algebras [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
Let $A$ be a unital $C^{*}$-algebra which has a faithful state. If $varphi:Arightarrow A$ is a unital linear map which is bijective and invertibility preserving or surjective and spectral radius preserving, then $varphi$ is a Jordan isomorphism. Also, we
Fatemeh Golfarshchi   +1 more
doaj   +1 more source

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