Results 21 to 30 of about 126 (51)
Some properties of a class of holomorphic functions associated with tangent function
Demonstratio MathematicaIn this study, we define new class of holomorphic functions associated with tangent function. Furthermore, we examine the differential subordination implementation results related to Janowski and tangent functions. Also, we investigate some extreme point
Khan Muhammad Ghaffar +5 more
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Univalent functions and integrable systems
, 2004 We study one-parameter expanding evolution families of simply connected domains in the complex plane described by infinite systems of evolution parameters.
Prokhorov, Dmitri, Vasil'ev, Alexander
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A subclass of strongly close-to-convex functions associated with Janowski function [PDF]
The aim of this paper is to introduce a new subclass of strongly close-to-convex functions by subordinating to Janowski function. Certain properties such as coefficient estimates, distortion theorem, argument theorem, inclusion relations and radius of ...
Singh, Gagandeep, Singh, Gurcharanjit
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Coefficient bounds for q-convex functions related to q-Bernoulli numbers
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaThe main objective of this paper is to present and investigate a subclass 𝒞(b, q) of q-convex functions in the unit disk that is defined by the q-Bernoulli numbers.
Breaz Daniel +3 more
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On the derivatives of a family of analytic functions [PDF]
, 2003 For $\beta< 1$, n = 0, 1, 2, . . ., and $-\pi
Al-Khal, R. A., Al-Kharsani, H. A.
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Subclasses Of Multivalent Harmonic Mappings Defined By Convolution. [PDF]
, 2009 Harmonic mappings have been recently investigated from the perspective of geometric function theory. These mappings are important in the study of minimal surfaces. Although harmonic mappings need not be analytic, they have been studied as generalizations
Ali, R. M. +2 more
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FUZZY DIFFERENTIAL SUBORDINATION INVOLVING GENERALIZED NOOR-RUSCHEWEYH OPERATOR [PDF]
A new operator Lnλ is introduced as a convex combination of Ruscheweyh derivative operator and Noor integral operator on the class A of analytic functions in the open unit disc E.
Noor, Khalida Inayat +1 more
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Tip-clearance flow and losses for an isolated compressor blade [PDF]
, 1962 The effect of a gap in an isolated aerofoil spanning a tunnel has been investigated both theoretically and experimentally. Two flow models have been suggested; one is valid for moderately large gap/chord ratios and the other for the small gap/chord ...
B. Lakshminarayana, J. H. Horlock
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Blade selection for a modern axial-flow compressor [PDF]
The procedures leading to successful design of an axial flow compressor are discussed. The three related approaches to cascade selection are: (1) experimental approach which relies on the use of experimental results from identical cascades to satisfy the
Wright, L. C.
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Landau-type Theorem and Bloch constant for elliptic harmonic mappings
In this article, we obtain certain estimates for the Taylor coefficients of $(K,K')$-elliptic harmonic mappings and using these estimates, we prove a Landau-type theorem for these mappings.
Bhowmik, Bappaditya, Sen, Sambhunath
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