Nevanlinna theory is an analytic refinement of results from complex analysis such as those codified by Picard's little theorem, Picard's great theorem, and the Weierstrass-Casorati theorem.
Nevanlinna Theory
See also
Picard's Great Theorem, Picard's Little Theorem, Weierstrass-Casorati TheoremExplore with Wolfram|Alpha
References
Krantz, S. G. Handbook of Complex Variables. Boston, MA: Birkhäuser, p. 141, 1999.Referenced on Wolfram|Alpha
Nevanlinna TheoryCite this as:
Weisstein, Eric W. "Nevanlinna Theory." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/NevanlinnaTheory.html