Mathematics – Quantum Algebra
Scientific paper
2011-05-30
Mathematics
Quantum Algebra
15 pages; v2 typos and omissions corrected, a discussion of Fredholm modules added
Scientific paper
Two hierarchies of quantum principal bundles over quantum real projective spaces are constructed. One hierarchy contains bundles with U(1) as a structure group, the other has the quantum group $SU_q(2)$ as a fibre. Both hierarchies are obtained by the process of prolongation from bundles with the cyclic group of order 2 as a fibre. The triviality or otherwise of these bundles is determined by using a general criterion for a prolongation of a comodule algebra to be a cleft Hopf-Galois extension.
Brzezinski Tomasz
Zielinski Bartosz
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