Results 111 to 120 of about 7,296 (239)

An upper bound to the second Hankel determinant for pre-starlike functions of order α

open access: yesLe Matematiche, 2015
The objective of this paper is to obtain an upper bound to the second Hankel determinant  for the function f and its inverse belonging to the class of pre-starlike functions of order alpha (0 ≤ alpha ≤ 1), using Toeplitz determinants.
Deekonda Vamshee Krishna, T. RamReddy
doaj  

On p-Valently Meromorphic-Strongly Starlike and Convex Functions

open access: yesInternational Journal of Analysis and Applications, 2016
In this paper, we obtain sufficient conditions for analytic function $f(z)$ in the punctured unit disk to be $p$-valently meromorphic-strongly starlike and $p$-valently meromorphic-strongly convex of order $\beta$ and type $\alpha$.
Rahim Kargar, Ali Ebadian, Janusz Sokol
doaj   +2 more sources

Inequalities of a Class of Analytic Functions Involving Multiplicative Derivative

open access: yesMathematics
Using the concepts of multiplicative calculus and subordination of analytic functions, we define a new class of starlike bi-univalent functions based on a symmetric operator, which involved the three parameter Mittag-Leffler function.
Kadhavoor R. Karthikeyan   +3 more
doaj   +1 more source

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