Siegel Modular Forms of Degree 2

This website aims at providing an open access source for information on traces of Hecke operators on Siegel modular forms of level 1 and level 2. This is based on the data obtained by counting curves over finite fields and their interpretation by Bergström, Faber and van der Geer. Via results of Weissauer, Petersen and Rösner this provides the traces of Hecke operators.

This website is an initiative of Jonas Bergström, Carel Faber, and Gerard van der Geer.

It is supported by the Foundation Compositio Mathematica.

We intend to develop a similar website for Siegel modular forms of degree 3.

The preferred way to cite this website is (in BibTeX format):

AUTHOR = {Bergström, Jonas and Faber, Carel and van der Geer, Gerard},
TITLE = {Siegel Modular Forms of Degree Two},
YEAR = {2016},
URL = {},
NOTE = {Retrieved [insert date here]}