THE FIRST HOCHSCHILD COHOMOLOGY GROUP OF A CLUSTER TILTED ALGEBRA REVISITED
نویسندگان
چکیده
منابع مشابه
The First Hochschild Cohomology Group of a Cluster tilted Algebra Revisited
Given a cluster-tilted algebra B we study its first Hochschild cohomology group HH(B) with coefficients in the B–B-bimodule B. If C is a tilted algebra such that B is the relation extension of C by E = ExtC(DC,C), then we prove that HH (B) is isomorphic, as a vector space, to the direct sum of HH(C) with HH(B,E). This yields homological interpretations for results of the first and the fourth au...
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ژورنال
عنوان ژورنال: International Journal of Algebra and Computation
سال: 2013
ISSN: 0218-1967,1793-6500
DOI: 10.1142/s0218196713400067