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Concordance invariants from covering involutions

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Speaker: 
András Stipsicz
Affiliation: 
Alfréd Rényi Institute, Budapest
Date: 
Tue, 2019-09-17 09:30 - 10:20
Location: 
MPIM Lecture Hall

We use the branched cover construction and ideas from connected Floer homology to define concordance invariants of knot in $S^3$. Calculations can be performed for double branched covers, in which case the invariants are trivial for alternating and torus knots and non-trivial for some pretzel knots. This allows us to derive some independence results in the smooth concordance group of knots.
 

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