Growth and Distortion Results for a Class of Biholomorphic Mapping and Extremal Problem with Parametric Representation in $$\\mathbb {C}^n$$Cn

Abstract

Let $$\\widehat{\\mathcal {S}}_g^{\\alpha , \\beta }(\\mathbb {B}^n)$$S^gα,β(Bn) be a subclass of normalized biholomorphic mappings defined on the unit ball in $$\\mathbb {C}^n,$$Cn, which is closely related to the starlike mappings. Firstly, we obtain the growth theorem for $$\\widehat{\\mathcal {S}}_g^{\\alpha , \\beta }(\\mathbb {B}^n)$$S^gα,β(Bn). Secondly, we apply the growth theorem and a new type of the boundary Schwarz lemma to establish the distortion theorems of the Fréchet-derivative type and the Jacobi-determinant type for this subclass, and the distortion theorems with g-starlike mapping (resp. starlike mapping) are partly established also. At last, we study the Kirwan and Pell type results for the compact set of mappings which have g-parametric representation associated with a modified Roper–Suffridge extension operator, which extend some earlier related results.