L-space knots are fibered and strongly quasipositive

Abstract

We give a new, conceptually simpler proof of the fact that knots in $S^3$ with positive L-space surgeries are fibered and strongly quasipositive. Our motivation for doing so is that this new proof uses comparatively little Heegaard Floer-specific machinery and can thus be translated to other forms of Floer homology. We carried this out for instanton Floer homology in our recent article "Instantons and L-space surgeries", and used it to generalize Kronheimer and Mrowka's results on $SU(2)$ representations of fundamental groups of Dehn surgeries.

12 pages, 2 figures

References in corpus (3)

• Knot Floer homology detects fibred knots
• Instantons and L-space surgeries
• Some remarks on cabling, contact structures, and complex curves