Automorphic forms for the theta group

  • Roelof W. Bruggeman
Part of the Modern Birkhäuser Classics book series (MBC)


In this chapter we consider automorphic forms on a well known subgroup of the modular group, the theta group. We give examples to illustrate the ideas in Part I. The main difference with the modular group is the presence of two cusps.


Modular Form Theta Function Fourier Expansion Fundamental Domain Eisenstein Series 
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Copyright information

© Springer Basel AG 1994

Authors and Affiliations

  • Roelof W. Bruggeman
    • 1
  1. 1.Mathematisch InstituutUniversiteit UtrechtUtrechtThe Netherland

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