Floer homology and non-fibered knot detection
Forum of Mathematics, Pi, Tome 13 (2025) no. 1, p. e1

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We prove for the first time that knot Floer homology and Khovanov homology can detect non-fibered knots and that HOMFLY homology detects infinitely many knots; these theories were previously known to detect a mere six knots, all fibered. These results rely on our main technical theorem, which gives a complete classification of genus-1 knots in the 3-sphere whose knot Floer homology in the top Alexander grading is 2-dimensional. We discuss applications of this classification to problems in Dehn surgery which are carried out in two sequels. These include a proof that $0$-surgery characterizes infinitely many knots, generalizing results of Gabai from his 1987 resolution of the Property R Conjecture.
Baldwin, John A.; Sivek, Steven. Floer homology and non-fibered knot detection. Forum of Mathematics, Pi, Tome 13 (2025) no. 1, p. e1. doi: 10.1017/fmp.2024.28
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