On the genus-one Gromov-Witten invariants of complete intersections

Abstract

We state and prove a long-elusive relation between genus-one Gromov-Witten of a complete intersection and twisted Gromov-Witten invariants of the ambient projective space. As shown in a previous paper, certain naturally arising cones of holomorphic vector bundle sections over the main component M 0 1,k (P n , d) of the moduli space of stable genus-one holomorphic maps into P n have a well-defined euler class. In this paper, we extend this result to moduli spaces of perturbed, in a restricted way, J-holomorphic maps. This extension is used to show that these cones are the correct genus-one analogues of the vector bundles relating genuszero Gromov-Witten invariants of a complete intersection to those of the ambient projective space. A relationship for higher-genus invariants is conjectured as well. Contents 4. Proof of Proposition 3.9 670 4.1. Outline 670 4.2. Proof of Lemma 4.1 675 4.3. Proof of Lemma 4.2 680 References 688