2025/12/3
Hossein Piri

Hossein Piri

Academic rank: Professor
ORCID:
Education: PhD.
H-Index:
Faculty: Faculty of Basic Sciences
ScholarId:
E-mail: piri.ho [at] gmail.com
ScopusId:
Phone: 04137745000-1642
ResearchGate:

Research

Title
MODIFIED ROPER-SUFFRIDGE EXTENSION OPERATOR FOR SOME SUBCLASSES OF THE UNIT BALL B^n
Type
Presentation
Keywords
Roper-Suffridge extension operator, Biholomorphic mapping, Almost starlike mapping.
Year
2021
Researchers Samira Rahrovi ، Hossein Piri

Abstract

Let Q : Cn􀀀1 ! C be a homogenous polynomail of degree 2. We consider the normalized extension of f to the Euclidean unit ball Bn  Cn given by [Q(f)](z) = (f(z1) + f′(z1)Q(^z); √ f′(z1)^z); where z = (z1; ^z) 2 Bn. In this paper, we show that under certain conditions, Q(f) preserve almost starlike mappings of complex order .