Results 21 to 30 of about 766 (271)

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   +1 more source

Free probability on Hecke algebras and certain group C^{*}-algebras induced by Hecke algebras [PDF]

open access: yesOpuscula Mathematica, 2016
In this paper, by establishing free-probabilistic models on the Hecke algebras \(\mathcal{H}\left(GL_{2}(\mathbb{Q}_{p})\right)\) induced by \(p\)-adic number fields \(\mathbb{Q}_{p}\), we construct free probability spaces for all primes \(p\).
Ilwoo Cho
doaj   +1 more source

Some Properties of Operator Valued Frames in Quaternionic Hilbert Spaces

open access: yesMathematics, 2022
Quaternionic Hilbert spaces play an important role in applied physical sciences especially in quantum physics. In this paper, the operator valued frames on quaternionic Hilbert spaces are introduced and studied.
Guoqing Hong, Pengtong Li
doaj   +1 more source

Partial orders on partial isometries [PDF]

open access: yesJournal of Operator Theory, 2016
This paper studies three natural pre-orders of increasing generality on the set of all completely non-unitary partial isometries with equal defect indices. We show that the problem of determining when one partial isometry is less than another with respect to these pre-orders is equivalent to the existence of a bounded (or isometric) multiplier between ...
Garcia, Stephan Ramon   +2 more
openaire   +2 more sources

Extensions of $ C^*$-algebras by partial isometries [PDF]

open access: yesSbornik: Mathematics, 2004
28 ...
Lebedev, A. V., Odzievich, A.
openaire   +3 more sources

C *-algebras generated by partial isometries [PDF]

open access: yesJournal of Applied Mathematics and Computing, 2008
In this paper, we characterize the C*-Algebra generated by partial isometries.
Cho, Ilwoo, Jorgensen, Palle
openaire   +2 more sources

On the monoid of partial isometries of a cycle graph [PDF]

open access: yes, 2023
Publisher Copyright: © TÜBİTAKIn this paper we consider the monoid DPCn of all partial isometries of an n-cycle graph Cn. We show that DPCn is the submonoid of the monoid of all oriented partial permutations on an n-chain whose elements are precisely all
TANIA PAULISTA   +3 more
core   +1 more source

Extensions of symmetric operators I: The inner characteristic function case

open access: yesConcrete Operators, 2015
Given a symmetric linear transformation on a Hilbert space, a natural problem to consider is the characterization of its set of symmetric extensions. This problem is equivalent to the study of the partial isometric extensions of a fixed partial isometry.
Martin R.T.W.
doaj   +1 more source

On Gradings of the Operator Algebra Generated by Mapping and Multipliers [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
The operator algebra generated by mapping on a countable set and multipliers is considered. The defined mapping induces a family of partial isometries satisfying some relations.
E.V. Patrin
doaj  

Crossed Product of a C*-Algebra by a Semigroup of Interactions

open access: yesDemonstratio Mathematica, 2014
The paper presents a construction of the crossed product of a C*-algebra by a commutative semigroup of bounded positive linear maps generated by partial isometries.
Kwaśniewski B. K.
doaj   +1 more source

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