Results 61 to 70 of about 642 (133)
Coefficient Estimates of Meromorphic Bi- Starlike Functions of Complex Order
International Journal of Analysis and Applications, 2013 In the present investigation, we define a new subclass of meromorphic bi-univalent functions class Σ' of complex order γ ∈ C\{0}, and obtain the estimates for the coefficients |b0| and |b1|. Further we pointed out several new or known consequences of our
T. Janani, G. Murugusundaramoorthy
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The Radius of Starlikeness of Meromorphic Typically Real Functions
Journal of Mathematical Analysis and Applications, 2001 A function \(f(z) = -1/z + c _0 + c_1 z + \cdots,\) analytic and nonvanishing in the punctured unit disk \(D' = \{ z: 0 < |z|< 1 \},\) is called meromorphic typically real, provided that \(\Im z \cdot \Im f(z) > 0\) for all nonreal \(z \in D'\). Denote the class of all such functions by \(Q\).
Dong, Jintian, Liu, Liquan
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Formula for meromorphic symmetric differences operator with application in the theory of subordination inequality. [PDF]
Heliyon, 2023 Aldawish I.
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On sufficient conditions of meromorphic starlike functions
Boletim da Sociedade Paranaense de Matemática, 2014 In this paper, we investigate interesting properties and sufficient conditions for meromorphic starlike functions in the punctured unit disc.
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A note on meromorphic m-valent starlike functions [PDF]
Journal of Mathematical Inequalities, 2010 In the present investigation, we will derive sufficient conditions for starlikeness of meromorphic m -valent functions in the punctured disc.
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مجلة بغداد للعلومThis work investigates several aspects of differential subordination and superordination, leading to the inclusion of a specific class within the domain of univalent meromorphic functions in a perforated open unit disc and deriving a few sandwich ...
Mustafa I. Hameed +5 more
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HADAMARD PRODUCT OF CERTAIN MEROMORPHIC STARLIKE AND CONVEX FUNCTIONS
Tamkang Journal of Mathematics, 1994 The author establishes certain results concerning the Hadamard product of meromorphic starlike and meromorphic convex functions analogous to those obtained by Vinod Kumar (J. Math. Anal. Appl. 113(1986), 230-234).
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A critical study of meromorphic starlike functions
, 2018 An attempt has been made to introduce a new criterion to make it possible to change meromorphic analytic function into a meromorphic starlike function of particular order. This criterion is based on a differential operator which is defined in a punctured unit disk U? . By using this criterion, one can find easily different types of meromorphic starlike
FAISAL, Imran, DARUS, M., SHAH, F. A.
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ON CERTAIN CLASSES OF MEROMORPHICALLY P-VALENT STARLIKE FUNCTIONS
Tamkang Journal of Mathematics, 1995 Let $M_{n, p}(\alpha)$ denote the class of functions of the form \[\int f(z) = \frac{1}{z^p}+\frac{a_0}{z^{p-1}}+\cdots+a_{k+p+1}z^k+\cdots, \quad p\in\mathbb{N}\] that are regular in the punctured disk $E = \{z : 0 < |z| < 1\}$ and satisfy \[\text{Re}\left\{\frac{z(D^{n+p-1}f(z))'}{D^{n+p-1}f(z)}\right\}<-\alpha\] for $0\le \alpha<p$
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New Criteria for Functions in a Class of Meromorphically Strongly Starlike Functions
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaThe authors propose to investigate some new criteria for a certain class of meromorphically strongly starlike functions in the punctured open unit disk. Some intriguing applications that arise as special cases of the main results, which are presented in ...
Cho Nak Eun, Kim Inhwa, Srivastava H. M.
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