More concordance homomorphisms from knot Floer homology

Abstract

We define an infinite family of linearly independent, integer-valued smooth concordance homomorphisms. Our homomorphisms are explicitly computable and rely on local equivalence classes of knot Floer complexes over the ring $\mathbb{F}[U,V]/(UV=0)$. We compare our invariants to other concordance homomorphisms coming from knot Floer homology, and discuss applications to topologically slice knots, concordance genus, and concordance unknotting number.

50 pages, 6 figures v2: Included a 2 page erratum pointing out an error in a lemma, along with a reference to a revised and correct version of the lemma. The main results of the paper are unaffected

References in corpus (1)

• Knot Floer homology and the unknotting number

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