Results 11 to 20 of about 2,700,748 (138)
On Oblique Domains of Janowski Functions [PDF]
Mathematica Slovaca, 2023 Abstract We investigate certain properties of tilted (oblique) domains, associated with the Janow- ski function (1 + Az)/(1 + Bz), where A, B ∈ ℂ with A ≠ B and |B| ≤ 1. We find several bounds for these oblique domains and also establish various subordination, radius, argument estimates involving Janowski function with complex parameters.
Kumar, S. Sivaprasad, Yadav, Pooja
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Differential subordination for Janowski functions with positive real part [PDF]
Studia Universitatis Babes-Bolyai Matematica, 2021 "Theory of differential subordination provides techniques to reduce differential subordination problems into verifying some simple algebraic condition called admissibility condition.We exploit the first order differential subordination theory to get several sufficient conditions for function satisfying several differential subordinations to be a ...
Anand, Swati +2 more
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The Fekete-Szegö Problem for p-Valently Janowski Starlike and Convex Functions [PDF]
International Journal of Mathematics and Mathematical Sciences, 2011 For p-valently Janowski starlike and convex functions defined by applying subordination for the generalized Janowski function, the sharp upper bounds of a functional |ap+2−μa2p+1| related to the Fekete-Szegö problem are given.
Toshio Hayami, Shigeyoshi Owa
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The Generalized Janowski Starlike and Close-to-Starlike Log-Harmonic Mappings
International Journal of Mathematics and Mathematical Sciences, 2011 Motivated by the success of the Janowski starlike function, we consider here closely related functions for log-harmonic mappings of the form 𝑓(𝑧)=𝑧ℎ(𝑧)𝑔(𝑧) defined on the open unit disc 𝑈.
Maisarah Haji Mohd, Maslina Darus
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Mathematics, 2021 A class of p-valent analytic functions is introduced using the q-difference operator and the familiar Janowski functions. Several properties of functions in the class, such as the Fekete–Szegö inequality, coefficient estimates, necessary and sufficient ...
Bo Wang, Rekha Srivastava, Jin-Lin Liu
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On Janowski Close-to-Convex Functions Associated with Conic Regions [PDF]
International Journal of Analysis and Applications, 2020 In this work, we introduce and investigate a class of analytic functions which is a subclass of close-to-convex functions of Janowski type and related to conic regions.
Afis Saliu, Khalida Inayat Noor
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Janowski Starlike Log-Harmonic Univalent Functions
, 2009 Let h(z) and g(z) be analytic functions in the open unit disc D = {z vertical bar vertical bar z vertical bar < 1}, with the normalization h(0) = g((0))under bar> = 1. The class of log-harmonic mappings of the form f = zh(z)g(z) is denoted by S(lh). The aim of this paper is to investigate the class of Janowski starlike log-harmonic mappings, a subclass
Deniz, Erhan, POLATOĞLU, YAŞAR
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Harmonic mappings related to Janowski starlike functions
Journal of Computational and Applied Mathematics, 2014 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yasemin Kahramaner +2 more
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On Stability of Convolution of Janowski Functions
International Journal of Analysis and Applications, 2017 In this paper, the classes S∗[A,B] and C[A,B] are discussed in terms of dual sets. Using duality, various geometric properties of mentioned class are analyzed. Problem of neighborhood as well as stability of convolution of S∗[A,B] and C[A,B] are studied.
Khalida Inayat Noor, Humayoun Shahid
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Subclass of m-quasiconformal harmonic functions in association with Janowski starlike functions
Applied Mathematics and Computation, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
F. Müge Sakar, Melike Aydogan
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