Hellenica World

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In algebraic geometry, the tautological ring is (roughly) the subring of the Chow ring of the moduli space of curves generated by tautological classes.

ELSV formula
Hodge bundle
Witten's conjecture

References

Vakil, Ravi (2003), "The moduli space of curves and its tautological ring" (PDF), Notices of the American Mathematical Society 50 (6): 647–658, MR 1988577
Graber, Tom; Vakil, Ravi (2001), "On the tautological ring of $$\overline{\mathcal{M}}_{g,n}$$" (PDF), Turkish Journal of Mathematics 25 (1): 237–243, MR 1829089

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