Here are some of my publications and preprints. These may differ slightly from the published versions. To view, click on the desired format.

Relative virtual localization and vanishing of tautological classes on moduli spaces of curves.
with R. Vakil
to appear in Duke Mathematical Journal
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Rational connectivity and sections of families over curves.
with J. Harris, B. Mazur, and J. Starr
to appear in Ann. Sci. École Norm. Sup.
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Algebraic orbifold quantum products.
with D. Abramovich and A. Vistoli
in "Orbifolds in Mathematics and Physics," 1-24.
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Open-string Gromov-Witten invariants: calculations and a mirror "theorem."
with E. Zaslow
in "Orbifolds in Mathematics and Physics," 107-122.
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Families of rationally connected varieties.
with J. Harris and J. Starr
J. Amer. Math. Soc., 16 (2003) 57-67.
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Constructions of nontautological classes on moduli spaces of curves.
with R. Pandharipande
Michigan Math. J. 51 (2003), 93-109.
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On the tautological ring of \bar Mg,n
with R. Vakil
Proceedings of 7th Gökova Geometry-Topology Conference
Turkish Journal of Mathematics 25 (2001) 237-243.
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Hodge integrals and Hurwitz numbers via virtual localization.
with R. Vakil
Compositio Math. 135 (2003) 25-36.
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Descendant invariants and characteristic numbers.
with J. Kock and R. Pandharipande
American Journal of Mathematics 124 (2002) 611-647.
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Enumerative geometry of hyperelliptic plane curves.
Journal of Algebraic Geometry 10 (2001) 725-755.
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Localization of virtual classes.
with R. Pandharipande
Inventiones Mathematicae 135 (1999) 487-518.
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