Results 81 to 90 of about 308 (156)
Modified Hadamard product properties of certain class of analytic functions with varying arguments defined by Salagean and Ruscheweyh derivative [PDF]
, 2017 In this paper we study the modified Hadamard product properties of certain class of analytic functions with varying arguments defined by S˘alăgean and Ruscheweyh derivative. The obtained results are sharp and they improve known results.
PÁLL-SZABÓ, Ágnes Orsolya
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Length problems for Bazilevič functions
Demonstratio Mathematica, 2019 Let C(r) denote the curve which is image of the circle |z| = r < 1 under the mapping f . Let L(r) be the length of C(r) and A(r) the area enclosed by the curve C(r).
Nunokawa Mamoru +2 more
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Some Notes about a Class of Univalent Functions with Negative Coefficients [PDF]
, 2010 MSC 2010: 30C45, 30C50The object of this paper is to obtain sharp results involving coefficient bounds, growth and distortion properties for some classes of analytic and univalent functions with negative ...
Pashkouleva, Donka
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Toeplitz matrices whose elements are coefficients of Bazilevič functions
Open Mathematics, 2018 We consider the Toeplitz matrices whose elements are the coefficients of Bazilevič functions and obtain upper bounds for the first four determinants of these Toeplitz matrices.
Radhika Varadharajan +3 more
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Neighborhoods and Partial Sums of Meromorphic Univalent Functions
, 2005 In this paper we determine neighborhood results and partial sums for certain class of meromorphic univalent functions with positive coefficients defined by Ruscheweyh derivatives.
Velayudam, S. V. S. +1 more
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Differential subordination and convexity criteria of integral operators
Open Mathematics, 2017 A significant connection between certain second-order differential subordination and subordination of f′(z) is obtained. This fundamental result is next applied to investigate the convexity of analytic functions defined in the open unit disk.
Chandrashekar R. +2 more
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Convex combination of analytic functions
Open Mathematics, 2017 Radii of convexity, starlikeness, lemniscate starlikeness and close-to-convexity are determined for the convex combination of the identity map and a normalized convex function F given by f(z) = α z+(1−α)F(z).
Cho Nak Eun +2 more
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© Hindawi Publishing Corp. SOME CRITERIA FOR UNIVALENCE OF CERTAIN INTEGRAL OPERATORS
, 2004 We derive some criteria for univalence of certain integral operators for analytic functions in the open unit disk. 2000 Mathematics Subject Classification: 30C45. 1.
Shigeyoshi Owa, Virgil Pescar
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A new class of (j; k)-symmetric harmonic starlike functions [PDF]
, 2015 Using the concepts of (j; k)-symmetrical functions we define the class of sense-preserving harmonic univalent functions SHj;ks (β), and prove certain interesting results.
AL SARARI, Fuad, SATYANARAYANA, Latha
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Demonstratio MathematicaA TT-symmetric univalent function is a complex valued function that is conformally mapping the unit disk onto itself and satisfies the symmetry condition ϕ[T](ζ)=[ϕ(ζT)]1∕T{\phi }^{\left[T]}\left(\zeta )={\left[\phi \left({\zeta }^{T})]}^{1/T} for all ζ ...
Ibrahim Rabha W., Baleanu Dumitru
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