Landau–Toeplitz theorems for slice regular functions over quaternions
Landau–Toeplitz theorems for slice regular functions over quaternions
The theory of slice regular functions of a quaternionic variable, as presented in [10], extends the notion of holomorphic function to the quaternionic setting.This theory, already rich of results, is sometimes surprisingly different from the theory of holomorphic functions of a complex variable.However, several fundamental results in the two environments …