Results 41 to 50 of about 339 (158)
On a subclass of analytic functions involving harmonic means
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015 In the present paper, we consider a generalised subclass of analytic functions involving arithmetic, geometric and harmonic means. For this function class we obtain an inclusion result, Fekete-Szegö inequality and coefficient bounds for bi-univalent ...
Tudor Andreea-Elena, Rǎducanu Dorina
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On some geometric results for generalized k-Bessel functions
Demonstratio Mathematica, 2023 The main aim of this article is to present some novel geometric properties for three distinct normalizations of the generalized kk-Bessel functions, such as the radii of uniform convexity and of α\alpha -convexity.
Toklu Evrim
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Journal of Function Spaces, Volume 2026, Issue 1, 2026.In geometric function theory and complex analysis, analytic functions exhibiting geometric symmetry play a fundamental role. However, investigations concerning multileaf domains, particularly those with fivefold rotational symmetry, have been relatively limited.
Suad Al-Mayyahi +4 more
wiley +1 more source
Certain Differential Subordinations using a Generalized Sălăgean Operator and Ruscheweyh Operator [PDF]
, 2010 MSC 2010: 30C45, 30A20, 34A40In the present paper we define a new operator using the generalized Sălăgean operator and the Ruscheweyh ...
Alb Lupaş, Alina
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Meromorphic close-to-convex functions satisfying a differential inequality
, 2020 In the present paper, we study the differential inequality ... where f ∈ Σ and notice that the members of class Σ which satisfy the above inequality are meromorphic close-to-convex.
BILLING, Sukhwinder Singh +1 more
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On neighborhoods of functions associated with conic domains
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015 Let k − ST [A, B], k ≥ 0, −1 ≤ B < A ≤ 1 be the class of normalized analytic functions defined in the open unit disk satisfying ℜ((B−1)zf′(z)f(z)−(A−1)(B+1)zf′(z)f(z)−(A+1))>k|(B−1)zf′(z)f(z)−(A−1)(B+1)zf′(z)f(z)−(A+1)−1|.$$\Re \left( {{{(B - 1){{zf'(z)}
Yağmur Nihat
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Fekete-Szegö functional for a class of non-Bazilevic functions related to quasi-subordination
Demonstratio Mathematica, 2023 In this article, we study the Fekete-Szegö functional associated with a new class of analytic functions related to the class of bounded turning by using the principle of quasi-subordination.
Shah Syed Ghoos Ali +6 more
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Unified Approach of the Logarithmic Coefficient Bounds for the Class of Bazilevic˘ Functions
Journal of Function Spaces, Volume 2026, Issue 1, 2026.The investigation of logarithmic coefficients in the theory of univalent functions began with Milin, who demonstrated their importance for understanding geometric features of these mappings through their connection with the Taylor coefficients hm. If S denotes the family of univalent functions on the unit disk D with the expansion hz=z+∑m=2∞hmzm, the ...
Ebrahim Analouei Adegani +3 more
wiley +1 more source
On a Convexity Preserving Integral Operator [PDF]
, 2010 MSC 2010: 30C45, 30A20, 34C40In this paper we determine conditions an analytic function g needs to satisfy in order that the function Fgiven by (1) be ...
Irina Oros, Georgia, Oros, Gheorghe
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On multivalent starlike functions
, 2019 We prove some new sufficient conditions for function to be p-valent, or p-valently starlike in the unit disc.
SOKÓŁ, Janusz, NUNOKAWA, Mamoru
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