Bulletin of the Iranian Mathematical Society

Bulletin of the Iranian Mathematical Society

On Atkin-Lehner correspondences on Siegel spaces

Document Type : Special Issue of BIMS in Honor of Professor Freydoon Shahidi

Author
Abstract
‎We introduce a higher dimensional Atkin-Lehner theory for‎ ‎Siegel-Parahoric congruence subgroups of $GSp(2g)$‎. ‎Old‎ ‎Siegel forms are induced by geometric correspondences on Siegel‎ ‎moduli spaces which commute with almost all local Hecke algebras‎. ‎We also introduce an algorithm to get equations for moduli spaces of‎ ‎Siegel-Parahoric level structures‎, ‎once we have equations for prime levels and square prime levels‎ ‎over the level one Siegel space‎. ‎This way we give equations for an infinite tower of Siegel spaces‎ ‎after N‎. ‎Elkies who did the genus one case‎. 
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Volume 43, Issue 4 (Special Issue)
August 2017
Pages 337-359

  • Receive Date 15 May 2017
  • Revise Date 01 October 2017
  • Accept Date 19 May 2017