Twisted Morita-Mumford classes on braid groups
Nariya Kawazumi
Abstract
Evaluating the twisted Morita-Mumford classes bar(h)p on the Artin braid group Bn, we give the stable algebraic independence of the bar(h)p's on the automorphism group of the free group, Aut(Fn). This is sharper than the results we obtained by restricting them to the mapping class group.
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