The number of poles of an automorphic function in the closure of its fundamental region.
Valence
See also
Fundamental Region, Univalent Function, Vertex DegreeExplore with Wolfram|Alpha
References
Apostol, T. M. Modular Functions and Dirichlet Series in Number Theory, 2nd ed. New York: Springer-Verlag, p. 84, 1997.Referenced on Wolfram|Alpha
ValenceCite this as:
Weisstein, Eric W. "Valence." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Valence.html