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Janowski-type mappings associated with the conic like domains.

Authors :
Hussain Bukhari, Syed Zakar
Asghar, Muhammad Raees
Source :
International Journal of Nonlinear Analysis & Applications; 2022, Vol. 13 Issue 2, p2469-2478, 10p
Publication Year :
2022

Abstract

In geometry, a conic is a plane curve whose coordinates satisfy a quadratic equation in two variables and can be expressed in matrix form. This equation allows deducing and expressing geometric properties of conic sections. In this article, we define certain subclasses U<subscript>k</subscript>S(λ, γ, τ, ρ) and U <superscript>ℑ</superscript> <subscript>k</subscript> S(λ, γ, τ, ρ) of holomorphic mappings associated with the Janowski-type mappings. These functions are actually generalizations of some basic families of starlike and convex mappings. We study sufficient conditions for f ∈ U<subscript>k</subscript>S(λ, γ, τ, ρ) along with the characterization, coefficient bounds and other problems. Using certain conditions for functions in the class U<subscript>k</subscript>S(λ, γ, ϱ, σ), we also define another class and study some subordination related result. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20086822
Volume :
13
Issue :
2
Database :
Complementary Index
Journal :
International Journal of Nonlinear Analysis & Applications
Publication Type :
Academic Journal
Accession number :
174970895
Full Text :
https://doi.org/10.22075/ijnaa.2022.25207.2953