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Bibliographic Details
Main Authors: Gay-Balmaz, François, Ratiu, Tudor S., Tumpach, Alice B.
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2405.13533
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Table of Contents:
  • The restricted Siegel disc is a homogeneous space related to the connected component $T_0(1)$ of the Universal Teichmüller space via the period mapping. In this paper we show that it is a coadjoint orbit of the universal central extension of the restricted symplectic group or, equivalently, an affine coadjoint orbit of the restricted symplectic group with cocycle given by the Schwinger term.