The Ramifications of the Centres: Quantised Function Algebras at Roots of Unity
The Ramifications of the Centres: Quantised Function Algebras at Roots of Unity
This paper continues the study of quantised function algebras Oε[G] of a semisimple group G at an lth root of unity ε. These algebras were introduced by De Concini and Lyubashenko in 1994, and studied further by De Concini and Procesi and by Gordon, amongst others. Our main purpose here …