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TitleModuli of Curves and Abelian Varieties [electronic resource] : The Dutch Intercity Seminar on Moduli / edited by Carel Faber, Eduard Looijenga
ImprintWiesbaden : Vieweg+Teubner Verlag, 1999
Connect tohttp://dx.doi.org/10.1007/978-3-322-90172-9
Descript VIII, 200p. online resource

SUMMARY

The Dutch Intercity Seminar on Moduli, which dates back to the early eighties, was an initiative of G. van der Geer, F. Oort and C. Peters. Through the years it became a focal point of Dutch mathematics and it gained some fame, also outside Holland, as an active biweekly research seminar. The tradition continues up to today. The present volume, with contributions of R. Dijkgraaf, C. Faber, G. van der Geer, R. Hain, E. Looijenga, and F. Oort, originates from the seminar held in 1995--96. Some of the articles here were discussed, in preliminary form, in the seminar; others are completely new. Two introductory papers, on moduli of abelian varieties and on moduli of curves, accompany the articles. Topics include a stratification of a moduli space of abelian varieties in positive characteristic, and the calculation of the classes of the strata, tautological classes for moduli of abelian varieties as well as for moduli of curves, correspondences between moduli spaces of curves, locally symmetric families of curves and jacobians, and the role of symmetric product spaces in quantum field theory, string theory and matrix theory


CONTENT

Moduli of Abelian Varieties: A Short Introduction and Survey -- 1 Introduction -- 2 Elliptic Curves -- 3 Abelian Varieties -- 4 The Torelli Morphism -- 5 Cycles on the Moduli Space of Abelian Varieties -- 6 The Moduli Space Ag in Positive Characteristic -- 7 The Moduli Space in Mixed Characteristic -- Remarks on Moduli of Curves -- 1 Introduction -- 2 Mapping Class Groups -- 3 The Torelli Group -- 4 Moduli Spaces of Curves -- 5 Deligne-Mumford-Knudsen Completion -- 6 Covers of Moduli Stacks -- 7 Tautological Classes -- 8 Stability -- 9 A Proarithmetic Hull of the Mapping Class Group -- 10 The Witten Conjecture -- 11 Complete Subvarieties of Moduli Spaces -- 12 Intersection Theory -- 13 Stable Maps and the Virasoro Conjecture -- A Stratification of a Moduli Space of Polarized Abelian Varieties in Positive Characteristic -- 1 Introduction -- 2 Elementary Sequences and Final Filtrations -- 3 Explicit Description of Some of the Strata -- 4 Standard Types -- 5 Moving in a Stratum -- 6 The Raynaud Trick -- 7 Results -- 8 Some Questions -- Cycles on the Moduli Space of Abelian Varieties -- 1 Introduction -- 2 The Tautological Subring of Ag -- 3 The Tautological Ring of A? g -- 4 Cycle Relations from Grothendieck-Riemann-Roch -- 5 On the Torsion of the Class ? g -- 6 The Ekedahl-Oort Stratification in Positive Characteristic -- 7 The Ekedahl-Oort Strata as Degeneracy Loci -- 8 The Degeneracy Locus Uรธ and ?0(p) -- 9 The Cycle Classes of the Strata -- 10 Effectivity of Tautological Classes -- 11 Some Additional Results -- Locally Symmetric Families of Curves and Jacobians -- 1 Introduction -- 2 Background and Definitions -- 3 Homomorphisms to Mapping Class Groups -- 4 Maps of Lattices to Mapping Class Groups -- 5 Locally Symmetric Hypersurfaces in Locally Symmetric Varieties -- 6 Geometry of the Jacobian Locus -- 7 Locally Symmetric Families of Curves -- 8 Locally Symmetric Families of Jacobians -- 9 Appendix: An Example -- A Conjectural Description of the Tautological Ring of the Moduli Space of Curves -- 1 Introduction -- 2 Known Results -- 3 The Conjectures and the Evidence -- 4 Calculations -- 5 Other Relations -- Correspondences between Moduli Spaces of Curves -- 1 Introduction -- 2 Correspondences for Mapping Class Groups: Closed Surfaces -- 3 Action of the Correspondences on the Tautological Classes -- 4 Hecke Operators Attached to Finite Abelian Covers -- 5 Correspondences via Ramified Covers -- 6 Correspondences Acting on a Lie Algebra -- Fields, Strings, Matrices and Symmetric Products -- 1 Introduction -- 2 Particles, Symmetric Products and Fields -- 3 Second-quantized Strings -- 4 Light-Cone Quantization of Quantum Field Theories -- 5 Light-Cone Quantization of String Theories -- 6 Matrix Strings and Interactions -- 7 String Theories in Six Dimensions -- Addresses


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