Results 11 to 20 of about 274 (35)
Conformable differential operators for meromorphically multivalent functions
Concrete Operators, 2021 We define a conformable diff-integral operator for a class of meromorphically multivalent functions. We show that this conformable operator adheres to the semigroup property.
Ibrahim Rabha W. +2 more
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Extreme points and support points of conformal mappings
Open Mathematics, 2019 There are three types of results in this paper. The first, extending a representation theorem on a conformal mapping that omits two values of equal modulus. This was due to Brickman and Wilken.
Peretz Ronen
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A factorization theorem for Logharmonic mappings
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 14, Page 853-856, 2003., 2003 We give the necessary and sufficient condition on sense‐preserving logharmonic mapping in order to be factorized as the composition of analytic function followed by a univalent logharmonic mapping.
Zayid Abdulhadi, Yusuf Abumuhanna
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On some new properties of the spherical curvature of stereographically projected analytic curves
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 26, Page 1633-1644, 2003., 2003 We discover new information about the spherical curvature of stereographically projected analytic curves. To do so, we first state formulas for the spherical curvature and spherical torsion of the curves on S2 which result after stereographically projecting the image curves of analytic, univalent functions belonging to the class 𝒮.
Stephen M. Zemyan
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Typically real logharmonic mappings
International Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 1, Page 1-9, 2002., 2002 We consider logharmonic mappings of the form f(z)=z|z| 2βhg¯ defined on the unit disk U which are typically real. We obtain representation theorems and distortion theorems. We determine the radius of univalence and starlikeness of these mappings. Moreover, we derive a geometric characterization of such mappings.
Zayid Abdulhadi
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A note on logharmonic mappings
International Journal of Mathematics and Mathematical Sciences, Volume 32, Issue 7, Page 449-451, 2002., 2002 We consider the problem of minimizing the moments of order p for a subclass of logharmonic mappings.
Zayid Abdulhadi
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On radii of starlikeness and convexity for convolutions of starlike functions
International Journal of Mathematics and Mathematical Sciences, Volume 20, Issue 2, Page 403-404, 1997., 1995 In this paper, we obtain the radiuses of univalence, starlikeness and convexity for convolutions of starlike functions.
Yi Ling, Shusen Ding
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Second Hankel determinant for a class of analytic functions defined by q-derivative operator
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019 In this paper, we obtain the estimates for the second Hankel determinant for a class of analytic functions defined by q-derivative operator and subordinate to an analytic function.
Răducanu Dorina
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Extreme points and convolution properties of some classes of multivalent functions
International Journal of Mathematics and Mathematical Sciences, Volume 19, Issue 2, Page 381-388, 1996., 1991 This paper deals with the extreme points of closed convex hulls of the classes of multivalent functions related to Ruscheweyh derivatives and then these are used to determine the coefficient bounds. Finally, we investigate convolution conditions and other properties of the functions in these classes.
O. P. Ahuja
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The Relationships Between p−valent Functions and Univalent Functions
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015 In this paper, we obtain some sufficient conditions for general p−valent integral operators to be the p−th power of a univalent functions in the open unit disk.
Çağlar Murat
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