Improved Bohr-Rogosinski radius for holomorphic mappings with values in complex Banach spaces

In this paper, we extend some Bohr-Rogosinski type inequalities of analytic functions in $\mathbb{C}$ to the cases of holomorphic mappings with values in higher-dimensional complex space. First, we obtain the general Bohr-Rogosinski radius for holomorphic mappings with values in the closure of the unit polydisc in ${\mathbb{C}}^n$. Furthermore, we consider the corresponding problems for holomorphic mappings with value in the closure of the unit ball of a JB${}^{\ast }$-triple. All the radius are optimal.