2 citations · 2 across the 1 of their papers we have counts for
2 papers
math.OA2015★ 2 cited
Haagerup approximation property via bimodules
Rui Okayasu, Narutaka Ozawa, Reiji Tomatsu
The Haagerup approximation property (HAP) is defined for finite von Neumann algebras in such a way that the group von Neumann algebra of a discrete group has the HAP if and only if…
math.OA2000
Cuntz-Krieger-Pimsner Algebras Associated with Amalgamated Free Product Groups
Rui Okayasu
We give a construction of a nuclear -algebra associated with an amalgamated free product of groups, generalizing Spielberg's construction of a certain Cuntz-Krieger algebra…