# Weierstrass’ theorem on addition formulas

Suppose that a complex analytic function $f$ has an addition formula. Then we can express $f$ as a composition $f=g\circ h$, where $g$ is an algebraic function and $h$ is one of the following:

Title Weierstrass’ theorem on addition formulas WeierstrassTheoremOnAdditionFormulas 2013-03-22 14:45:47 2013-03-22 14:45:47 rspuzio (6075) rspuzio (6075) 6 rspuzio (6075) Theorem msc 30A99 msc 30D05