2017年11月20日 |  English version
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Rigidity dimension of algebras

报告题目:Rigidity dimension of algebras
报告人:Prof. Dr. Steffen Koenig, University of Stuttgart, Germany
报告时间:2017年9月22日(周五)10:30-11:30
报告地点:行健楼503
邀请人:刘群华副教授
摘要:Let A be a finite dimensional algebra and E the endomorphism ring of a generator-cogenerator over A. Then the dominant dimension of E measures the strength of the double centraliser property connecting E and A. Rigidity dimension of A intends to measure the best possible such connection when E is required to have finite global dimension.
There are several upper bounds for the rigidity dimension of A, and this dimension is almost always invariant under stable equivalences. For some classes of algebras, the rigidity dimension is known explicitly.
This is ongoing joint work with Hongxing Chen, Ming Fang, Otto Kerner and Kunio Yamagata
Rigidity dimension of algebras

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