, Volume 208, Issue 2, pp 489-506

Hodge Integrals and Degenerate Contributions

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Hodge integral techniques are used to compute the degree 1 degenerate contributions of curves of arbitrary genus in the Gromov–Witten theory of 3-folds. In the Calabi–Yau case, the contributions are compared to related M-theoretic calculations. In the Fano case, the contributions suggest new integrality conditions.

Received: 6 April 1999 / Accepted: 14 July 1999