I'm reading "From Holomorphic Functions to Complex Manifolds" - Fritzsche & Grauert and I have something that I don't understand very well: If ##\nu \in \mathbb{N}_0^n, t \in \mathbb{R}^n_+## and ##z \in \mathbb{C}^n##, write ##\nu = (\nu_1, \nu'), t = (t_1, t')## and ##z = (z_1, z')##. \ An...