The numbers of periodic orbits of holomorphic mappings hidden at fixed points

Guang Yuan Zhang

Let ${\Delta }^2$ be a ball in the complex vector space ${\mathbb{C}}^2$ centered at the origin, let $f:{\Delta }^2\to {\mathbb{C}}^2$ be a holomorphic mapping$,$ with $f(0)=0$, and let $M$ be…