Results 11 to 20 of about 66 (66)

An exotic characterization of a commutative H*-algebra

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
Commutative H*-algebra is characterized in terms of the property that the orthogonal complement of a right ideal is a left ideal.
Parfeny P. Saworotnow
doaj   +1 more source

On the Ideals of C∗-Algebra Generated by a Family of Partial Isometries and Multipliers [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
C∗-subalgebra of the algebra of all bounded operators on the Hilbert space l2 generated by the multiplier algebra and a family of partial isometries satisfying some relations is covered in the paper.
A.Yu. Kuznetsova, E.V. Patrin
doaj  

Sphere and projective space of a C*-algebra with a faithful state

open access: yesDemonstratio Mathematica, 2019
Let 𝒜 be a unital C*-algebra with a faithful state ϕ. We study the geometry of the unit sphere 𝕊ϕ = {x ∈ 𝒜 : ϕ(x*x) = 1} and the projective space ℙϕ = 𝕊ϕ/𝕋.
Antunez Andrea C.
doaj   +1 more source

C∗-algebraic Smale Mean Value Conjecture and Dubinin-Sugawa Dual Mean Value Conjecture

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki
We develop C∗-algebraic analogues of two central problems in complex analysis: the Smale Mean Value Conjecture and the Dubinin-Sugawa Dual Mean Value Conjecture.
Krishna, K.M.
doaj   +1 more source

On Birkhoff – James and Roberts orthogonality

open access: yesSpecial Matrices, 2018
In this paper we present some recent results on characterizations of the Birkhoff-James and the Roberts orthogonality in C*-algebras and Hilbert C*-modules.
Arambašic Ljiljana, Rajic Rajna
doaj   +1 more source

Modeling Dynamics of Hydrogen‐Oxidizing Bacteria Under Pulsing Soil Moisture Conditions

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 9, September 2026.
Abstract Hydrogen‐oxidizing bacteria (HOB) are responsible for the dominant soil sink of atmospheric hydrogen (H2); however, models estimating this sink are yet to incorporate explicit representation of these biotic drivers. Here, we use a donor‐consumer model to examine how HOB and carbon‐decomposing bacteria (CDB) may jointly influence organic carbon
Damola Olaitan   +2 more
wiley   +1 more source

Maximal subgroups of free projection‐ and idempotent‐generated semigroups with applications to partition monoids

open access: yesProceedings of the London Mathematical Society, Volume 133, Issue 2, August 2026.
Abstract This paper investigates the maximal subgroups of a free projection‐generated regular ∗$*$‐semigroup PG(P)${{\textsf {PG}}}(P)$ over a projection algebra P$P$, and their relationship to the maximal subgroups of the free idempotent‐generated semigroup IG(E)${{\textsf {IG}}}(E)$ over the corresponding biordered set E=E(P)$E = {{\textsf {E}}}(P)$.
James East   +3 more
wiley   +1 more source

Interventions Targeting the Beef Feedlot Environment to Control Antimicrobial Resistance: A Mathematical Modelling Study

open access: yesZoonoses and Public Health, Volume 73, Issue 4, Page 358-369, June 2026.
ABSTRACT Introduction To address concerns about livestock as a source of antimicrobial‐resistant bacteria and genes, there have been many recent efforts worldwide to study prescribing practices, optimal antibiotic use, and alternatives to antibiotic use.
Wendy Anne Beauvais   +5 more
wiley   +1 more source

Brief Review of Soft Sets and Its Application in Coding Theory

open access: yesJournal of New Theory, 2020
In this paper, we will focus to one of the recent applications of PU-algebras in the coding theory, namely the construction of codes by soft sets PU-valued functions. First, we shall introduce the notion of soft sets PU-valued functions on PU-algebra and
Samy Mohammed Mostafa   +2 more
doaj  

Generalized free wreath products and their operator algebras

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We develop a new approach on free wreath products, generalizing the constructions of Bichon and of Fima‐Pittau. We show stability properties for certain approximation properties such as exactness, Haagerup property, hyperlinearity, and K‐amenability. We study qualitative properties of the associated von Neumann algebra: factoriality, primeness,
Pierre Fima, Arthur Troupel
wiley   +1 more source

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