Reduced invariants from cuspidal maps
arXiv:1801.07739
Abstract
We consider genus 1 enumerative invariants arising from the Smyth-Viscardi moduli space of stable maps from curves with nodes and cusps. We prove that these invariants are equal to the Vakil-Zinger reduced invariants for the quintic threefold, providing a modular interpretation of the latter.
52 pages, 3 figures. Comments welcome!