Notes on the knot concordance invariant Upsilon

Ozsváth, Stipsicz and Szabó have defined a knot concordance invariant $\Upsilon _K$ taking values in the group of piecewise linear functions on the closed interval [ $0 , 2$ ] . This paper presents a description of one approach to defining $\Upsilon _K$ and proving its basic properties.


Publication Date:
Jan 25 2017
Date Submitted:
Nov 21 2018
ISSN:
1472-2739
Citation:
Algebraic and Geometric Topology
17




 Record created 2018-11-21, last modified 2019-04-03

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