activity
19982026
most citedTensor algebras of C*-correspondences and their C*-envelopes

8 citations · 39 across the 34 of their papers we have counts for

collaborators

44 papers

math.OA2026

Rigidity for Isomorphisms between Operator Algebras with Commutative Diagonals

Elias G. Katsoulis, Feifei Miao, Wenming Wu +1

We show that two families of operator algebras, the CSL algebras of multiplicity free CSLs and the semicrossed products of commutative C-algebras, demonstrate a strong form of…

math.OA2025

Nondegenerate actions on Hilbert C*-modules

Elias Katsoulis, Christopher Ramsey

Let X be a (right) Hilbert C*-module and let B be a C*-algebra acting on X from the left via adjointable operators. In this note we establish the equivalence of two notions of nond…

math.OA2024

On Toeplitz algebras of product systems

Elias G. Katsoulis, Marcelo Laca, Camila F. Sehnem

In the setting of product systems over group-embeddable monoids, we consider nuclearity of the associated Toeplitz C*-algebra in relation to nuclearity of the coefficient algebra.…

math.OA2023

Crossed products and C*-covers of semi-Dirichlet operator algebras

Adam Humeniuk, Elias G. Katsoulis, Christopher Ramsey

In this paper, we show that the semi-Dirichlet C*-covers of a semi-Dirichlet operator algebra form a complete lattice, establishing that there is a maximal semi-Dirichlet C*-cover.…

math.OA2023

Fell's absorption principle for semigroup operator algebras

Elias Katsoulis

Fell's absorption principle states that the left regular representation of a group absorbs any unitary representation of the group when tensored with it. In a weakened form, this r…

math.OA2023

Stable isomorphisms of operator algebras

Evgenios Kakariadis, Elias Katsoulis, Xin Li

Let $\A$ and $\B$ be operator algebras with -isomorphic diagonals and let $\K$ denote the compact operators. We show that if $\A\otimes\K$ and $\B\otimes\K$ are isometrically…