Fundamental group of simple C*-algebras with unique trace

Norio Nawata, Yasuo Watatani

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We introduce the fundamental group F(A) of a unital simple C*-algebra A with a unique normalized trace. We compute fundamental groups F(A) of several nuclear or non-nuclear C*-algebras A. K-theoretical obstruction enables us to compute the fundamental group easily. Our study is essentially based on the computation of Picard groups by Kodaka.

Original languageEnglish
Pages (from-to)307-318
Number of pages12
JournalAdvances in Mathematics
Issue number1
Publication statusPublished - Sep 2010

All Science Journal Classification (ASJC) codes

  • Mathematics(all)


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