Extending lazy 2-cocycles on Hopf algebras and lifting projective representations afforded by them

Details Extending lazy 2-cocycles on Hopf algebras and lifting projective representations afforded by them Extending lazy 2-cocycles on Hopf algebras and lifting projective representations afforded by them

2004-12-21

arxiv.org/abs/math/0412425v1

Mathematics

Quantum Algebra

25 pages

Scientific paper

We study some problems related to lazy 2-cocycles, such as: extension of
(lazy) 2-cocycles to a Drinfeld double and to a Radford biproduct,
Yetter-Drinfeld data obtained from lazy 2-cocycles, lifting of projective
representations afforded by lazy 2-cocycles.

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