136 citations · 418 across the 34 of their papers we have counts for
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math.OA2010★ 61 cited
The Cuntz Semigroup and Comparison of Open Projections
Eduard Ortega, Mikael Rordam, Hannes Thiel
We show that a number of naturally occurring comparison relations on positive elements in a C*-algebra are equivalent to natural comparison properties of their corresponding open p…
math.OA2010★ 19 cited
Purely infinite C*-algebras arising from crossed products
Mikael Rordam, Adam Sierakowski
We study conditions that will ensure that a crossed product of a C*-algebra by a discrete exact group is purely infinite (simple or non-simple). We are particularly interested in t…