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Bases for Integral TQFT lattices, part II

Gregor Masbaum
(Institut de mathématiques de Jussieu)
Seminar
Onsdag, 23 oktober, 2013, at 15:15-16:15, in Aud. D3 (1531-215)
Abstrakt:
Some years ago, Gilmer and I showed that SO(3)-TQFT at odd primes admits an integral refinement, meaning that the TQFT vector space associated to a surface contains a natural mapping class group invariant free lattice defined over the ring Z[\zeta_p] where \zeta_p is a primitive p-th root of unity. In this talk, I plan to first review our description of a basis of this lattice, and then to explain how to modify this construction to get a basis in the SU(2)-case as well (but still at the prime p). This is work in progress. Some familiarity with skein theory will be assumed.
Organiseret af: QGM
Kontaktperson: Jørgen Ellegaard Andersen