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AuthorLi, Ke-Zheng. author
TitleModuli of Supersingular Abelian Varieties [electronic resource] / by Ke-Zheng Li, Frans Oort
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg, 1998
Connect tohttp://dx.doi.org/10.1007/BFb0095931
Descript IX, 116 p. online resource

SUMMARY

Abelian varieties can be classified via their moduli. In positive characteristic the structure of the p-torsion-structure is an additional, useful tool. For that structure supersingular abelian varieties can be considered the most special ones. They provide a starting point for the fine description of various structures. For low dimensions the moduli of supersingular abelian varieties is by now well understood. In this book we provide a description of the supersingular locus in all dimensions, in particular we compute the dimension of it: it turns out to be equal to ร{132}g.g/4ร{156}, and we express the number of components as a class number, thus completing a long historical line where special cases were studied and general results were conjectured (Deuring, Hasse, Igusa, Oda-Oort, Katsura-Oort)


CONTENT

Supersingular abelian varieties -- Some prerequisites about group schemes -- Flag type quotients -- Main results on S g,1 -- Prerequisites about Dieudonnรฉ modules -- PFTQs of Dieudonnรฉ modules over W -- Moduli of rigid PFTQs of Dieudonnรฉ modules -- Some class numbers -- Examples on S g,1 -- Main results on S g,d -- Proofs of the propositions on FTQs -- Examples on S g,d (d>1) -- A scheme-theoretic definition of supersingularity


Mathematics Algebraic geometry Mathematics Algebraic Geometry



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