7 citations · 7 across the 6 of their papers we have counts for
6 papers
C*-algebras of groupoid morphisms
Bruno Tadeu Costa, Renan Gambale Romano, Felipe Vieira
In this paper we suggest a definition for a C*-algebra attached to an injective morphism of some Étale groupoid. We take into account all the peculiarities of such objects and pres…
Maximizing the first eigenvalue of the Jacobi operator
J. Fabio Montenegro, F. Damiana Vieira
We consider the Jacobi operator, defined on a closed oriented hypersurfaces immersed in the Euclidean space with the same volume of the unit sphere. We show a local generalization…
C*-algebras of endomorphisms of groups with finite cokernel and partial actions
Felipe Vieira
In this paper we extend the constructions of Boava and Exel to present the C*-algebra associated with an injective endomorphism of a group with finite cokernel as a partial group a…
Universal C*-algebras of endomorphisms of groups and partial actions
Felipe Vieira
We present a different way to study the C*-algebra associated with an injective endomorphism of a group G of infinite cokernel. We follow the work of Boava and Exel to construct a…
C*-algebras associated with endomorphisms of groups
Felipe Vieira
In this work we construct a C*-algebra from an injective endomorphisms of some group G, allowing the endomorphism to have infinite cokernel. We generalize results obtained by I. Hi…
Partial Crossed Product of a group G vs Crossed Product of S(G)
Ruy Exel, Felipe Vieira
In this work we present a new definition to the Partial Crossed Product by actions of inverse semigroups in a C^*-algebra, without using the covariant representations as Sieben did…