Seminars: I. M. Nikonov, Virtual index cocycles and invariants of virtual links

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Mathematical Colloquium of the Bauman Moscow State Technical University
November 12, 2020 17:30, Moscow, Zoom video-meeting

Virtual index cocycles and invariants of virtual links

I. M. Nikonov

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Abstract: Virtual index cocycle is the 1-cochain that counts virtual crossings in the arcs of a virtual link diagram. We show how this cocycle can be used to reformulate and unify some known invariants of virtual links.

Zoom-conference identificator: 948 341 6153; Password: 2SXtEz

Website: https://us02web.zoom.us/j/9483416153?pwd=NzJmdk5pZjdiMXdoMUFoakNzNFhLQT09

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