Results 71 to 80 of about 1,333 (181)
Approximation and geometric properties of some complex Bernstein-Stancu polynomials in compact disks
Journal of Numerical Analysis and Approximation Theory, 2007 In this paper, the order of simultaneous approximation, convergence results of the iterates and shape preserving properties, for complex Bernstein-Stancu polynomials (depending on one parameter) attached to analytic functions on compact disks are ...
Sorin G. Gal
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On a Coefficient Inequality for Starlike Functions [PDF]
Proceedings of the American Mathematical Society, 1975 M. S. Robertson considered a coefficient inequality I I for starlike functions that, if true, would imply a generalized ...
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On the non-starlikeness of solutions to the starlike interior wake problem [PDF]
Proceedings of the American Mathematical Society, 2005 We study examples of the starlike interior “wake problem" for which no starlike solution exists relative to the natural star center of the problem. These examples show that the main result of D.E. Tepper in “A mathematical model for a wake” (Michigan Math. J.
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MathematicsThis work introduces new bi-univalent function classes defined using the fractional q-Ruscheweyh operator and characterized by subordination to q-Hermite polynomials.
Feras Yousef +3 more
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On a local version of Jack’s lemma
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019 The purpose of this paper is to provide a result which concerns with the boundary behavior of analytic functions. It may be a local version of the well known Jack’s lemma when we change the function normalization at the origin.
Nunokawa Mamoru, Sokół Janusz
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ON NORMALIZED RABOTNOV FUNCTION ASSOCIATED WITH CERTAIN SUBCLASSES OF ANALYTIC FUNCTIONS
Проблемы анализа, 2023 In this paper, we investigate some sufficient conditions for the normalized Rabotnov function to be in certain subclasses of analytic and univalent functions. The usefulness of the results is depicted by some corollaries and examples.
S. Sumer Eker, B. ¸Seker, S. Ece
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Rocky Mountain Journal of Mathematics, 1993 Let \(S^*\) be the usual class of starlike functions, i.e. \(f(z)\) of the form \(z+a_ 2 z^ 2\dots\) which are analytic and univalent in the unit disc \(U\) and which map \(U\) onto a domain starshaped with respect to the origin.
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The radius of convexity of certain analytic functions II
International Journal of Mathematics and Mathematical Sciences, 1980 In [2], MacGregor found the radius of convexity of the functions f(z)=z+a2z2+a3z3+…, analytic and univalent such that |f′(z)−1|
J. S. Ratti
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International Journal of Mathematics and Mathematical Sciences, 1982 In this paper, a new coefficient result for the Bazileviĉ functions of type β is obtained.
K. Inayat Noor
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Inequalities of a Class of Analytic Functions Involving Multiplicative Derivative
MathematicsUsing the concepts of multiplicative calculus and subordination of analytic functions, we define a new class of starlike bi-univalent functions based on a symmetric operator, which involved the three parameter Mittag-Leffler function.
Kadhavoor R. Karthikeyan +3 more
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