A Short Course in Automorphic Functions The turning point came when

The turning point came when the Physical Science Study Committee commissioned him to write the influential concise text

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First published in 1892

and poetic drama expressed in purely instrumental terms

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A Short Course in Automorphic Functions The turning point came whenThis concise three part treatment introduces undergraduate and graduate students to the theory of automorphic functions and discontinuous groups. Author Joseph Lehner begins by elaborating on the theory of discontinuous groups by the classical method of Poincar, employing the model of the hyperbolic plane. The necessary hyperbolic geometry is developed in the text. Chapter two develops automorphic functions and forms via the Poincar series. Formulas