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Cycle classes on the moduli of K3 surfaces in positive characteristic
Stockholm University, Faculty of Science, Department of Mathematics.
2015 (English)In: Selecta Mathematica, New Series, ISSN 1022-1824, E-ISSN 1420-9020, Vol. 21, no 1, 245-291 p.Article in journal (Refereed) Published
Abstract [en]

This paper provides explicit closed formulas in terms of tautological classes for the cycle classes of the height and Artin invariant strata in families of K3 surfaces. The proof is uniform for all strata and uses a flag space as the computations in Ekedahl and van der Geer (Algebra, arithmetic and geometry, progress in mathematics, vol. 269-270, Birkhauser, Basel, 2010) for the Ekedahl-Oort strata for families of abelian varieties, but employs a Pieri formula to determine the push down to the base space.

Place, publisher, year, edition, pages
2015. Vol. 21, no 1, 245-291 p.
Keyword [en]
K3 surface, Height, Artin invariant
National Category
Mathematics
Identifiers
URN: urn:nbn:se:su:diva-113964DOI: 10.1007/s00029-014-0156-8ISI: 000348054900003OAI: oai:DiVA.org:su-113964DiVA: diva2:789875
Note

AuthorCount:2;

Available from: 2015-02-20 Created: 2015-02-16 Last updated: 2017-12-04Bibliographically approved

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