English

Knot Floer homology of satellite knots with (1,1)-patterns

Geometric Topology 2021-07-09 v1

Abstract

For pattern knots admitting genus-one bordered Heegaard diagrams, we show the knot Floer chain complexes of the corresponding satellite knots can be computed using immersed curves. This, in particular, gives a convenient way to compute the τ\tau-invariant. For patterns PP obtained from two-bridge links b(p,q)b(p,q), we derive a formula for the τ\tau-invariant of P(T2,3)P(T_{2,3}) and P(T2,3)P(-T_{2,3}) in terms of (p,q)(p,q), and use this formula to study whether such patterns induce homomorphisms on the concordance group, providing a glimpse at a conjecture due to Hedden.

Keywords

Cite

@article{arxiv.1912.07914,
  title  = {Knot Floer homology of satellite knots with (1,1)-patterns},
  author = {Wenzhao Chen},
  journal= {arXiv preprint arXiv:1912.07914},
  year   = {2021}
}