We classify the finite-dimensional quotient
Hopf algebras of the deformed algebra of functions
of the general linear group (over an algebraically
closed field of zero characteristic). This gives an
interesting class of Hopf algebras if the deformation
parameter is a root of unity (of odd order). We
investigate the properties of these Hopf algebras
and construct a new counterexample
to Kaplansky's tenth conjecture. E-mail: [email protected] 1991 Mathematics Subject Classification: 81R50, 16W30, 17B37.