Examples of holomorphic functions vanishing to infinite order at the boundary

We present examples of holomorphic functions that vanish to in- finite order at points at the boundary of their domain of definition. They give rise to examples of Dirichlet minimizing Q-valued functions indicating that “higher”-regularity boundary results are difficult. Furthermore we dis- cuss some implication to branching and vanishing phenomena in the context of minimal surfaces, Q-valued functions and unique continuation.