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Critical simply connected algebras

โœ Scribed by Klaus Bongartz


Publisher
Springer
Year
1984
Tongue
English
Weight
811 KB
Volume
46
Category
Article
ISSN
0025-2611

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We show that a tame quasi-tilted algebra A (over an algebraically closed รฟeld) is simply connected if and only if its รฟrst Hochschild cohomology group (with coe cients in the biomodule AAA) vanishes. We also classify these algebras, and give characterisations of those tame quasi-tilted algebras whic