Published on *Max Planck Institute for Mathematics* (http://www.mpim-bonn.mpg.de)

Posted in

- Talk [1]

Speaker:

Hidetaka Kitayama
Affiliation:

Wakayama University
Date:

Fri, 2017-11-24 11:10 - 12:00 We denote by $G$ the unitary group of the quaternion hermitian

space of rank two over an indefinite quaternion algebra $B$ over

the rational number field. Then the group $G$ is a $Q$-form of $\operatorname{Sp}(2;\mathbb{R})$,

and each $Q$-form of $\operatorname{Sp}(2;\mathbb{R})$ can be obtained in this way.

In this talk, we will consider Siegel modular forms for discrete

subgroups of $\operatorname{Sp}(2;\mathbb{R})$ which are defined from $G$ in the case where

$B$ is division.

**Links:**

[1] http://www.mpim-bonn.mpg.de/taxonomy/term/39

[2] http://www.mpim-bonn.mpg.de/node/3444

[3] http://www.mpim-bonn.mpg.de/node/7600