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On the signature of a positive braid
Published: August 4, 2023
arXiv: 2308.02275v2
Authors
Joshua Evan Greene
,
Livio Liechti
Abstract
We show that the signature of a positive braid link is bounded from below by one-quarter of its first Betti number. This equates to one-half of the optimal bound conjectured by Feller, who previously provided a bound of one-eighth.
