22 citations · 52 across the 11 of their papers we have counts for
12 papers
Injective envelopes of partial C*-dynamical systems
Matthew Kennedy, Larissa Kroell, Camila F. Sehnem
We extend Hamana's theory of injective envelopes, along with several key features of the theory, to the realm of partial C*-dynamical systems. In particular, we show that a partial…
Primality and the ideal intersection property for reduced crossed products
Matthew Kennedy, Larissa Kroell, Camila F. Sehnem
We consider the ideal structure of reduced crossed products over discrete groups. First, we completely characterize primality for reduced crossed products. Second, we characterize…
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.…
Equivalence of definitions of AF groupoid
Lisa Orloff Clark, Astrid an Huef, Rafael P. Lima +1
We prove the equivalence of two definitions of AF groupoid in the literature: one by Renault and the other by Farsi, Kumjian, Pask and Sims. In both definitions, an AF groupoid is…
C*-envelopes of tensor algebras of product systems
Camila F. Sehnem
Let be a submonoid of a group and let be a product system over with coefficient C*-algebra . We show that the following C*-alg…
Equilibrium on Toeplitz extensions of higher dimensional noncommutative tori
Zahra Afsar, Marcelo Laca, Jacqui Ramagge +1
The C*-algebra generated by the left-regular representation of twisted by a -cocycle is a Toeplitz extension of an -dimensional noncommutative torus, on which…
Toeplitz algebras of semigroups
Marcelo Laca, Camila F. Sehnem
To each monoid that embeds in a group we associate a universal Toeplitz C*-algebra defined via generators and relations; is a quotient of Li's semigroup C*-al…
Nuclearity for partial crossed products by exact discrete groups
Alcides Buss, Damián Ferraro, Camila F. Sehnem
We study partial actions of exact discrete groups on C*-algebras. We show that the partial crossed product of a commutative C*-algebra by an exact discrete group is nuclear wheneve…
Fell bundles over quasi-lattice ordered groups and -algebras of compactly aligned product systems
Camila F. Sehnem
We define notions of semi-saturatedness and orthogonality for a Fell bundle over a quasi-lattice ordered group. We show that a compactly aligned product system of Hilbert bimodules…
Nuclearity of semigroup C*-algebras
Astrid an Huef, Brita Nucinkis, Camila F. Sehnem +1
We study the semigroup C*-algebra of a positive cone P of a weakly quasi-lattice ordered group. That is, P is a subsemigroup of a discrete group G with P\cap P^{-1}=\{e\} and such…
On -algebras associated to product systems
Camila F. Sehnem
Let be a unital subsemigroup of a group . We propose an approach to -algebras associated to product systems over . We call the -algebra of a g…
A bicategorical interpretation for relative Cuntz--Pimsner algebras
Ralf Meyer, Camila F. Sehnem
We interpret the construction of relative Cuntz-Pimsner algebras of correspondences in terms of the correspondence bicategory, as a reflector into a certain sub-bicategory. This ge…