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Published January 20, 2023 | Published
Journal Article Open

The next-to-top term in knot Floer homology

Ni, Yi ORCID icon

Abstract

Let K be a null-homologous knot in a generalized L-space Z with b₁(Z) ≤ 1. Let F be a Seifert surface of K with genus g. We show that if HFK(Z,K,[F],g) is supported in a single ℤ/2ℤ-grading, then rank HFK(Z,K,[F],g-1) ≥ rank HFK(Z,K,[F],g).

Additional Information

This article is published open access under our Subscribe to Open model. CC-BY-4.0 The author is indebted to Robert Lipshitz for many fruitful discussions and critical comments which shaped this work. The author also wishes to thank an anonymous referee for suggestions which improved this paper. The author was partially supported by NSF grant number DMS-1811900.

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Additional details

Created:
August 22, 2023
Modified:
October 23, 2023