Upsilon type concordance invariants
Geometric Topology
2019-12-25 v1
Abstract
To a region of the plane satisfying a suitable convexity condition we associate a knot concordance invariant . For appropriate choices of the domain this construction gives back some known knot Floer concordance invariants like Rasmussen's invariants, and the Ozsv\' ath-Stipsicz-Szab\' o upsilon invariant. Furthermore, to three such regions , and we associate invariants generalising Kim-Livingston secondary invariant. We show how to compute these invariants for some interesting classes of knots (including alternating and torus knots), and we use them to obstruct concordances to Floer thin knots and algebraic knots.
Keywords
Cite
@article{arxiv.1709.01594,
title = {Upsilon type concordance invariants},
author = {Antonio Alfieri},
journal= {arXiv preprint arXiv:1709.01594},
year = {2019}
}
Comments
16 pages, 2 figures