Involutive Heegaard Floer homology and rational cuspidal curves
arXiv:1609.08303 · doi:10.1112/plms.12179
Abstract
We use invariants of Hendricks and Manolescu coming from involutive Heegaard Floer theory to find constraints on possible configurations of singular points of a rational cuspidal curve of odd degree in the projective plane. We show that the results do not carry over to rational cuspidal curves of even degree.
Appendix by Andrzej Schinzel. 31 pages