A modular eigenform is a modular form that is an eigenvector of every Hecke operator acting on its
space. If 
,
then 
is the corresponding Hecke eigenvalue.
Modular Eigenform
See also
Hecke Eigenvalue, Hecke Operator, Modular Form, Modular NewformExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Modular Eigenform." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/ModularEigenform.html