Results 81 to 90 of about 998 (123)

Radii problems for normalized q−Bessel and Wright functions

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In this investigation, our main objective is to ascertain the radii of k-uniform convexity of order and the radii of strong starlikeness of the some normalized q-Bessel and Wright functions. In making this investigation we deal with the normalized Wright
Toklu Evrim   +2 more
doaj   +1 more source

Coefficient estimates and Fekete-Szegö inequality for a class of analytic functions satisfying subordinate condition associated with Chebyshev polynomials

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In this paper, we define a class of analytic functions, ℱ(ℋ, α, δ, µ), satisfying the following ...
Szatmari Eszter, Altinkaya Şahsene
doaj   +1 more source

Certain classes of analytic functions defined by fractional q-calculus operator

open access: yesActa Universitatis Sapientiae: Mathematica, 2018
In this paper, the concept of fractional q-calculus and generalized Al-Oboudi differential operator defining certain classes of analytic functions in the open disc are used.
Ravikumar N.
doaj   +1 more source

On a class of analytic functions governed by subordination

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
The purpose of this paper is to introduce a class of functions ℱλ, λ ∈ [0, 1], consisting of analytic functions f normalized by f(0) = f´(0) − 1 = 0 in the open unit disk U which satisfies the subordination condition ...
Raina Ravinder Krishna, Sokół Janusz
doaj   +1 more source

Coefficient estimates and Fekete-Szegö problem for some classes of univalent functions generalized to a complex order

open access: yesDemonstratio Mathematica
In this article, we determine coefficient estimates and study the Fekete-Szegö problem for classes Λn(b){\Lambda }_{n}\left(b) and Λnc(b){\Lambda }_{n}^{c}\left(b), where bb is a nonzero complex order.
Aron Mihai
doaj   +1 more source

On certain subclasses of analytic functions associated with Poisson distribution series

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In this paper, we find the necessary and sufficient conditions, inclusion relations for Poisson distribution series 𝒦(m,z)=z+∑n=2∞mn-1(n-1)!e-mzn$\mathcal{K}\left( {{\rm{m, z}}} \right) = {\rm{z + }}\sum\limits_{{\rm{n}} = 2}^\infty {{{{{\rm{m}}^{{\rm{n}}
Frasin B. A.
doaj   +1 more source

Analytic solutions of a generalized complex multi-dimensional system with fractional order

open access: yesDemonstratio Mathematica
The Duhamel principle is a mathematical principle that allows us to solve linear partial differential equations. This system is generalized by the concept of the kk-symbol fractional calculus.
Baleanu Dumitru, Ibrahim Rabha W.
doaj   +1 more source

On a subclass of multivalent functions defined by generalized multiplier transformation

open access: yesOpen Mathematics
The objective of this study is to establish a novel category of multivalent analytic functions by utilizing generalized multiplier transformations. The subclass is further examined for coefficient estimations, growth and distortion theorems, extreme ...
Alharayzeh Ma’moun I. Y.
doaj   +1 more source

Coefficient functionals for Sakaguchi-type-Starlike functions subordinated to the three-leaf function

open access: yesDemonstratio Mathematica
A challenging part of studying geometric function theory is figuring out the sharp boundaries for coefficient-related problems that crop up in the Taylor-Maclaurin series of univalent functions.
Murugusundaramoorthy Gangadharan   +3 more
doaj   +1 more source

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