130 citations · 534 across the 49 of their papers we have counts for
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Cuntz-Krieger algebras for infinite matrices
Ruy Exel, Marcelo Laca
Given an arbitrary infinite 0--1 matrix A having no identically zero rows, we define an algebra OA as the universal C*-algebra generated by partial isometries subject to conditions…
Partial dynamical systems and C*-algebras generated by partial isometries
Ruy Exel, Marcelo Laca, John Quigg
A collection of partial isometries whose range and initial projections satisfy a specified set of conditions often gives rise to a partial representation of a group. The C*-algebra…
Endomorphisms of B(H), extensions of pure states, and a class of representations of O_n
Neal Fowler, Marcelo Laca
Let F_n be the fixed-point algebra of the gauge action of the circle on the Cuntz algebra O_n. For every pure state ρof F_n and every representation θof C(T) we construct a represe…
Continuous Fell Bundles Associated to Measurable Twisted Actions
Ruy Exel, Marcelo Laca
Given a measurable twisted action of a second-countable, locally compact group G on a separable C*-algebra A, we prove the existence of a topology on AxG making it a continuous bun…