Operators of Basic (or q-) Calculus and Fractional q-Calculus and Their Applications in Geometric Function Theory of Complex Analysis

HM Srivastava - Iranian Journal of Science and Technology …, 2020 - Springer
Basic (or q-) series and basic (or q-) polynomials, especially the basic (or q-) hypergeometric
functions and basic (or q-) hypergeometric polynomials, are known to have widespread …

[PDF][PDF] Applications of a certain q-integral operator to the subclasses of analytic and bi-univalent functions

B Khan, HM Srivastava, M Tahir, M Darus, QZ Ahmad… - AIMS Math, 2021 - aimspress.com
In the present investigation, our aim is to define a generalized subclass of analytic and
biunivalent functions associated with a certain q-integral operator in the open unit disk U …

A Study of Some Families of Multivalent q-Starlike Functions Involving Higher-Order q-Derivatives

B Khan, ZG Liu, HM Srivastava, N Khan, M Darus… - Mathematics, 2020 - mdpi.com
In the present investigation, by using certain higher-order q-derivatives, the authors
introduce and investigate several new subclasses of the family of multivalent q-starlike …

[PDF][PDF] Applications of higher-order q-derivatives to the subclass of q-starlike functions associated with the Janowski functions

MSU Rehman, QZ Ahmad, HM Srivastava, N Khan… - AIMS Math, 2021 - aimspress.com
In this paper, we first investigate some subclasses of q-starlike functions. We then apply
higher-order q-derivative operators to introduce and study a new subclass of q-starlike …

A Subclass of Multivalent Janowski Type q-Starlike Functions and Its Consequences

Q Hu, HM Srivastava, B Ahmad, N Khan, MG Khan… - Symmetry, 2021 - mdpi.com
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 …

A certain q-Ruscheweyh type derivative operator and its applications involving multivalent functions

B Khan, HM Srivastava, S Arjika, S Khan… - Advances in Difference …, 2021 - Springer
In the present paper, by using the concept of convolution and q-calculus, we define a certain
q-derivative (or q-difference) operator for analytic and multivalent (or p-valent) functions …

Coefficient estimates for a subclass of analytic functions associated with a certain leaf-like domain

B Khan, HM Srivastava, N Khan, M Darus, M Tahir… - Mathematics, 2020 - mdpi.com
First, by making use of the concept of basic (or q-) calculus, as well as the principle of
subordination between analytic functions, generalization R q (h) of the class R (h) of analytic …

A Class of k-Symmetric Harmonic Functions Involving a Certain q-Derivative Operator

HM Srivastava, N Khan, S Khan, QZ Ahmad, B Khan - Mathematics, 2021 - mdpi.com
In this paper, we introduce a new class of harmonic univalent functions with respect to k-
symmetric points by using a newly-defined q-analog of the derivative operator for complex …

[PDF][PDF] Hankel and Toeplitz determinant for a subclass of multivalent q-starlike functions of order α

H Tang, S Khan, S Hussain, N Khan - AIMS Math, 2021 - academia.edu
In this paper our aim is to study some valuable problems dealing with newly defined
subclass of multivalent q-starlike functions. These problems include the initial coefficient …

Higher-order q-derivatives and their applications to subclasses of multivalent Janowski type q-starlike functions

B Khan, ZG Liu, HM Srivastava, S Araci, N Khan… - Advances in Difference …, 2021 - Springer
In the present investigation, with the help of certain higher-order q-derivatives, some new
subclasses of multivalent q-starlike functions which are associated with the Janowski …