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Idempotents in a complex group algebra, projective modules, and the von Neumann algebra

โœ Scribed by B. Eckmann


Publisher
Springer
Year
2001
Tongue
English
Weight
96 KB
Volume
76
Category
Article
ISSN
0003-889X

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Projective modules, augmentation and ide
โœ Ioannis Emmanouil ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 106 KB

We consider a condition on a group G, that was studied by Strebel and independently by Strojnowski, which implies that the complex group algebra of G has no non-trivial idempotents. We elaborate on that technique and slightly relax the Strebel-Strojnowski condition. This enables us to prove in a rel