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On Graded Bialgebra Deformations

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arxiv math/0506030 v2 pith:KBOTYRN7 submitted 2005-06-02 math.QA math.RA

On Graded Bialgebra Deformations

classification math.QA math.RA
keywords gradedbialgebradeformationsandruskiewitsch-schneidercohomologycorrespondingdeformationexplain
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We introduce the graded bialgebra deformations, which explain 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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