Orateur: Matthias Nagel (Université du Québec à Montreal)
Titre: Milnor's triple linking numbers and C-complexes
Résumé: We recall how to compute Milnor's triple linking numbers from a C-complex. We then relate these invariants to fillability of two link exteriors, and the question of when two links admit equivalent C-complexes. This extends a theorem of Roth-Davis to include also links with nonvanishing linking numbers This is joint work with P. Orson and M. Powell.

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