Title
A Subclass Of Multivalent Janowski Type Q-Starlike Functions And Its Consequences
Abstract
In this article, by utilizing the theory of quantum (or q-) calculus, we define a new subclass of analytic and multivalent (or p-valent) functions class A(p), where class A(p) is invariant (or symmetric) under rotations. The well-known class of Janowski functions are used with the help of the principle of subordination between analytic functions in order to define this subclass of analytic and p-valent functions. This function class generalizes various other subclasses of analytic functions, not only in classical Geometric Function Theory setting, but also some q-analogue of analytic multivalent function classes. We study and investigate some interesting properties such as sufficiency criteria, coefficient bounds, distortion problem, growth theorem, radii of starlikeness and convexity for this newly-defined class. Other properties such as those involving convex combination are also discussed for these functions. In the concluding part of the article, we have finally given the well-demonstrated fact that the results presented in this article can be obtained for the (p,q)-variations, by making some straightforward simplification and will be an inconsequential exercise simply because the additional parameter p is obviously unnecessary.
Year
DOI
Venue
2021
10.3390/sym13071275
SYMMETRY-BASEL
Keywords
DocType
Volume
analytic functions, multivalent (or p-valent) functions, differential subordination, q-derivative (or q-difference) operator
Journal
13
Issue
Citations 
PageRank 
7
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Qiuxia Hu100.68
Hari M. Srivastava202.70
Bakhtiar Ahmad300.34
Nazar Khan401.35
Muhammad Ghaffar Khan501.01
Wali Khan Mashwani601.35
Bilal Khan702.70