Anderson, Joel; Paschke, William L. The K-theory of the reduced \(C^*\)-algebra of an HNN-group. (English) Zbl 0627.46078 J. Oper. Theory 16, 165-187 (1986). Reviewer: G.Corach MSC: 46L80 18F25 × Cite Format Result Cite Review PDF
Anderson, Joel A \(C^*\)-algebra \(\mathcal A\) for which Ext (\(\mathcal A\)) is not a group. (English) Zbl 0378.46057 Ann. Math. (2) 107, 455-458 (1978). MSC: 46L05 18G15 × Cite Format Result Cite Review PDF Full Text: DOI
Anderson, Joel A \(C^*\)-algebra \(\mathcal A\) for which Ext (\(\mathcal A\)) is not a group. (English) Zbl 0363.46053 Ann. Math. (2) 107, 455-458 (1978). MSC: 46L05 18G15 × Cite Format Result Cite Review PDF Full Text: DOI