A fundamental region for Hecke's modular group

@article{Evans1973AFR,
  title={A fundamental region for Hecke's modular group},
  author={Ronald J. Evans},
  journal={Journal of Number Theory},
  year={1973},
  volume={5},
  pages={108-115}
}
  • R. Evans
  • Published 1 April 1973
  • Mathematics
  • Journal of Number Theory
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VERSATILITY is the most delusive of the fairy gifts ; the men of genius on whom it was bestowed otherwise than in subtle malevolence can be counted on the fingers. In the age of Euler himself, Johann
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