Results 31 to 40 of about 308 (156)
Simple sufficient conditions for starlikeness and convexity for meromorphic functions
Open Mathematics, 2016 In this paper we investigate some extensions of sufficient conditions for meromorphic multivalent functions in the open unit disk to be meromorphic multivalent starlike and convex of order α.
Goswami Pranay +2 more
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Convolutions of harmonic right half-plane mappings
Open Mathematics, 2016 We first prove that the convolution of a normalized right half-plane mapping with another subclass of normalized right half-plane mappings with the dilatation −z(a+z)/(1+az)$ - z(a + z)/(1 + az)$ is CHD (convex in the horizontal direction) provided a=1$a
Li YingChun, Liu ZhiHong
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Fekete-Szegö problem for a class of analytic functions defined by Carlson-Shaffer operator [PDF]
, 2018 In the present paper, authors study a Fekete-Szegö problem for a class of analytic functions defined by Carlson-Shaffer operator. Relevant connections of the results presented here with various known results are briefly indicated.
PORWAL, Saurabh, KUMAR, Kaushal
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On a class of analytic functions generated by fractional integral operator
Concrete Operators, 2017 In this note, we improve the idea of the Tsallis entropy in a complex domain. This improvement is contingent on the fractional operator in a complex domain (type Alexander).
Ibrahim Rabha W.
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Estimate of third Hankel determinant for a subfamily of analytic functions
Annals of the West University of Timisoara: Mathematics and Computer Science, 2023 In this article, our aim is to study analytic functions related with Salagean operator and associated with the right half of the lemniscate of Bernoulli. We find the estimates of the third Hankel determinant for new family of analytic functions.
Shah Syed Ghoos Ali +4 more
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Demonstratio Mathematica, 2023 Let Sγ,A,B∗(D){S}_{\gamma ,A,B}^{\ast }\left({\mathbb{D}}) be the usual class of gg-starlike functions of complex order γ\gamma in the unit disk D={ζ∈C:∣ζ∣
Sima Xiaoying +2 more
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Strong subordination and superordination with sandwich-type theorems using integral operators [PDF]
, 2021 The notions of strong differential subordination and superordination have been studied recently by many authors. In the present paper, using these concepts, we obtain some preserving properties of certain nonlinear integral operator defined on the space ...
ARJOMANDINIA, Parviz, AGHALARY, Rasoul
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Certain Classes of Analytic Functions Associated With q-Analogue of p-Valent Cătaş Operator
Moroccan Journal of Pure and Applied Analysis, 2021 In this paper, we investigate several interesting properties for certain class of analytic functions defined by q-analogue of p-valent Cătaş operator. All our results are sharp.
Aouf M. K., Madian S.M.
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On Subclasses of Spiral‐Like Functions Defined by the q‐Derivative Operator
Journal of Function Spaces, Volume 2026, Issue 1, 2026.In 1990, Ismail et al. introduced a generalized class of starlike functions using the q‐derivative operator. Similarly, many authors have studied various subclasses of analytic functions involving the q‐derivative operator from different perspectives. This paper is aimed at presenting new subclasses of analytic and spiral‐like functions related to the ...
Fatma Z. El-Emam +2 more
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Differential subordinations obtained by using a fractional operator [PDF]
, 2018 We investigate several differential subordinations using the fractional operator Dν,n : A → A, for −∞ < λ < 2, ν > −1, n ∈ N0 = {0, 1, 2, . . .}, introduced in [7].
SZATMARI, Eszter
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