14 citations · 22 across the 11 of their papers we have counts for
9 papers · 1 filter
On Conjugacy of Subalgebras in Graph -Algebras. II
Tomohiro Hayashi, Jeong Hee Hong, Wojciech Szymański
We apply a method inspired by Popa's intertwining-by-bimodules technique to investigate inner conjugacy of MASAs in graph -algebras. First we give a new proof of non-inner con…
On Conjugacy of Subalgebras of Graph C*-Algebras
Tomohiro Hayashi, Jeong Hee Hong, Sophie Emma Zegers +1
The problem of inner vs outer conjugacy of subalgebras of certain graph C*-algebras is investigated. For a large class of finite graphs E, we show that whenever is a vertex-fix…
The Polynomial Endomorphisms of Graph Algebras
Rune Johansen, Adam P. W. Sørensen, Wojciech Szymański
We investigate polynomial endomorphisms of graph -algebras and Leavitt path algebras. To this end, we define and analyze the coding graph corresponding to each such an endomor…
The -algebras of quantum lens and weighted projective spaces
Tomasz Brzeziński, Wojciech Szymański
It is shown that the algebra of continuous functions on the quantum -dimensional lens space is a graph -algebra, for arbitrary positi…
On Normalizers of -Subalgebras in the Cuntz Algebra . II
Tomohiro Hayashi, Wojciech Szymanski
We investigate subalgebras of the Cuntz algebra that arise as finite direct sums of corners of the UHF-subalgebra . For such an , we complet…
Topological aperiodicity for product systems over semigroups of Ore type
B. K. Kwasniewski, W. Szymanski
We prove a version of uniqueness theorem for Cuntz-Pimsner algebras of discrete product systems over semigroups of Ore type. To this end, we introduce Doplicher-Roberts picture of…
KMS states on Nica-Toeplitz algebras of product systems
Jeong Hee Hong, Nadia S. Larsen, Wojciech Szymański
We investigate KMS states of Fowler's Nica-Toeplitz algebra associated to a compactly aligned product system over a semigroup of Hilbert bimodules. This a…
On normalizers of -subalgebras in the Cuntz algebra
Tomohiro Hayashi
In this paper we investigate the normalizer of a -subalgebra where is the canonical UHF-subal…
-algebras associated to -correspondences and applications to mirror quantum spheres
David Robertson, Wojciech Szymański
The structure of the -algebras corresponding to even-dimensional mirror quantum spheres is investigated. It is shown that they are isomorphic to both Cuntz-Pimsner algebras of…