[PDF][PDF] Geometric Properties of Generalized Bessel Functions.

SR Mondal, A Swaminathan - Bulletin of the Malaysian Mathematical …, 2012 - math.usm.my
In this work, the generalized Bessel functions with their normalization are considered.
Various conditions are obtained so that these Bessel functions have certain geometric …

Certain geometric properties of Mittag-Leffler functions

S Noreen, M Raza, SN Malik - Journal of Inequalities and Applications, 2019 - Springer
In this paper, some geometric properties of normalized Mittag-Leffler functions are
investigated. We focus on starlikeness of order 2 μ+ η− 1 2μ+η-1 and convexity in the …

[PDF][PDF] On certain geometric properties of normalized Mittag-Leffler functions

S Noreen, M Raza, MU Din… - UPB Sci. Bull. Ser. A …, 2019 - scientificbulletin.upb.ro
n= 0 zn Γ (αn+ β), α, β∈ C, Re (α)> 0, Re (β)> 0, z∈ C.(2) For different values of parameters,
the conditions of convergence vary. When α and β are positive and real, the above given …

Fekete–Szegö problem for a certain subclass of close-to-convex functions

B Kowalczyk, A Lecko - Bulletin of the Malaysian Mathematical Sciences …, 2015 - Springer
Given a starlike function g ∈\mathcal S^*, g∈ S∗, an analytic standardly normalized
function ff in the unit disk DD is called close-to-convex with respect to gg if there exists δ ∈ …

Starlikeness of Gaussian hypergeometric functions using positivity techniques

P Sangal, A Swaminathan - Bulletin of the Malaysian Mathematical …, 2018 - Springer
In this work, sufficient conditions on the sequence {a_n\} an are obtained to guarantee the
starlikeness, close-to-convexity and convex in the direction of imaginary axis of the analytic …

Convexity, Starlikeness, and Prestarlikeness of Wright Functions

D Liu, MU Din, M Raza, SN Malik, H Tang - Mathematics, 2022 - mdpi.com
This article deals with the normalized Wright function and its geometric properties. In
particular, we find sufficiency criteria for close-to-convexity with respect to starlike function ς …

On generalized Ces\aro stable functions

P Sangal, A Swaminathan - arXiv preprint arXiv:1705.04112, 2017 - arxiv.org
The notion of Ces\aro stable function is generalized by introducing Ces\aro mean of type $(b-
1; c) $ which give rise to a new concept of generalized Ces\aro stable function. As an …

Geometric properties of Cesaro averaging operators

P Sangal, A Swaminathan - Journal of Complex Analysis, 2017 - Wiley Online Library
Using positivity of trigonometric cosine and sine sums whose coefficients are generalization
of Vietoris numbers, we find the conditions on coefficient {ak} to characterize the geometric …

Certain geometric properties of Lommel and hyper-Bessel functions

S Mushtaq, M Raza, MU Din - Mathematics, 2019 - mdpi.com
In this article, we are mainly interested in finding the sufficient conditions under which
Lommel functions and hyper-Bessel functions are close-to-convex with respect to the certain …

On the study of trigonometric polynomials using Strum sequence

SR Mondal, KS Nisar, T Abdeljawad - Journal of Mathematics, 2020 - Wiley Online Library
This article constructs trigonometric polynomials of the sine and cosine whose sums are
nonnegative. As an application, those nonnegative trigonometric sums are used to study the …