منابع مشابه
On Graded Bialgebra Deformations
We introduce the graded bialgebra deformations, which explains Andruskiewitsch-Schneider’s liftings method. We also relate this graded bialgebra deformation with the corresponding graded bialgebra cohomology groups, which is the graded version of the one due to Gerstenhaber-Schack.
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Let A denote a bialgebra over a field k and let At = A[[t]] denote the ring of formal power series with coefficients in A. Assume that A is also isomorphic to a free, associative algebra over k. We give a simple construction which makes At a bialgebra deformation of A. In typical applications, At is neither commutative nor cocommutative. This construction yields bialgebra deformations associate...
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ژورنال
عنوان ژورنال: Algebra Colloquium
سال: 2007
ISSN: 1005-3867,0219-1733
DOI: 10.1142/s1005386707000302