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Finite dimensional Hopf algebras arising from quantized universal enveloping algebras. (English) Zbl 0695.16006
Some finite-dimensional Hopf algebras over the field $${\mathcal F}_ p$$ (p is prime) play an important role in the theory of modular representations. One can define a finite-dimensional Hopf algebra in terms of an indecomposable positive-definite symmetric Cartan matrix $$(a_{ij})$$ with $$1\leq i,j\leq n$$. The present paper is aimed to link the following problems: (i) Finding the characters of the finite-dimensional simple modules of the algebraic group on $$\bar F_ p$$ corresponding to the matrix $$(a_{ij})$$. (ii) Finding the characters of the finite- dimensional simple modules over the quantum group corresponding to $$(a_{ij})$$ at $${}^ p\sqrt{1}$$.
Reviewer: E.Kryachko

##### MSC:
 16W30 Hopf algebras (associative rings and algebras) (MSC2000) 17B35 Universal enveloping (super)algebras 20G05 Representation theory for linear algebraic groups 17B20 Simple, semisimple, reductive (super)algebras 22E65 Infinite-dimensional Lie groups and their Lie algebras: general properties
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