English

Harmonic theta series and the Kodaira dimension of $\mathcal{A}_6$

Algebraic Geometry 2021-03-31 v2 Number Theory

Abstract

We construct a basis of the space S14(Sp12(Z)){\text S}_{14}({\text{Sp}}_{12}({\mathbb Z})) of Siegel cusp forms of degree 66 and weight 1414 consisting of harmonic theta series. One of these functions has vanishing order 22 at the boundary which implies that the Kodaira dimension of A6\mathcal{A}_6 is non-negative.

Keywords

Cite

@article{arxiv.1909.07062,
  title  = {Harmonic theta series and the Kodaira dimension of $\mathcal{A}_6$},
  author = {Moritz Dittmann and Riccardo Salvati Manni and Nils R. Scheithauer},
  journal= {arXiv preprint arXiv:1909.07062},
  year   = {2021}
}