Representations of Finite-Dimensional Ho
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Martin Lorenz
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Article
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1997
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Elsevier Science
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English
β 310 KB
Let H denote a finite-dimensional Hopf algebra with antipode S over a field β«ήβ¬ -. w We give a new proof of the fact, due to Oberst and Schneider Manuscripta Math. 8 Ε½ . x 1973 , 217α241 , that H is a symmetric algebra if and only if H is unimodular and S 2 is inner. If H is involutory and not sem