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Davood Alimohammadi

Davood Alimohammadi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0002-9398-6213
Education: PhD.
ScopusId: 6505995626
Faculty: Science
Address: Arak University
Phone:

Research

Title
Successive coefficients of functions in classes defined by subordination
Type
JournalPaper
Keywords
Successive coefficients · Univalent functions · Starlike and convex
Year
2021
Journal Analysis and Mathematical Physics
DOI
Researchers Davood Alimohammadi ، Ebrahim Analouee ، Teodor Bulboaka ، Nak Eun Cho

Abstract

The aim of the present paper is to determine bounds on the difference of the moduli of successive coefficients, that is  |an+1|−|an| for classes defined by subordination like classes of starlike functions S∗ (ϕ), and convex functions C(ϕ). For various special functions ϕ corresponding consequences of the main result are also presented that incorporate some known results as the special cases.d