Modular map for the family of abelian surfaces via elliptic K3 surfaces

Atsuhira Nagano, Hironori Shiga*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    In this paper we give explicit modular maps for the family of abelian surfaces and that of the abelian surfaces whose endomorphism algebra contains Z[1+5/2]. We obtain a description of the Shimura variety for the latter family, also. The notion of the family of K3 surfaces with a fixed marking plays a central role. As the basement of our study we use the expressions of those families given by Clingher-Doran, A. Nagano and the work of A. Kumar as well.

    Original languageEnglish
    Pages (from-to)89-114
    Number of pages26
    JournalMathematische Nachrichten
    Issue number1
    Publication statusPublished - 2015 Jan 1


    • Abelian surfaces
    • Hilbert modular forms
    • K3 surfaces
    • Period domains
    • Theta constants

    ASJC Scopus subject areas

    • Mathematics(all)


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