Differential sandwich theorems for some subclasses of analytic functions involving a linear operator.
Shammugam, T.N., Ramachandran, C., Darus, M., Sivasubramanian, S. (2007)
Acta Mathematica Universitatis Comenianae. New Series
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Shammugam, T.N., Ramachandran, C., Darus, M., Sivasubramanian, S. (2007)
Acta Mathematica Universitatis Comenianae. New Series
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Priyabrat Gochhayat (2013)
Matematički Vesnik
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Darus, M., Ibrahim, R. (2010)
Fractional Calculus and Applied Analysis
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MSC 2010: 30C45 The main object of this article is to introduce sufficient conditions of univalency for a class of analytic functions with finitely many coefficients defined by approximate functions due to Suffridge on the unit disk of the complex plane whose image is saddle-shaped. Sandwich theorem is also discussed.
Oladipo, A.T. (2009)
Acta Universitatis Apulensis. Mathematics - Informatics
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A. O. Mostafa (2010)
Matematički Vesnik
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Ibrahim, Rabha W., Darus, Maslina (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Nechita, Veronica Oana (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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Alb Lupaş, Alina, Cătaş, Adriana (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Irina Oros, Georgia (2010)
Fractional Calculus and Applied Analysis
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MSC 2010: 30C45, 30A20, 34A30 The notion of differential superordination was introduced in [4] by S.S. Miller and P.T. Mocanu as a dual concept of differential subordination [3] and was developed in [5]. The notion of strong differential subordination was introduced by J.A. Antonino and S. Romaguera in [1]. In [6] the author introduced the dual concept of strong differential superordination. In this paper we study strong differential superordination using the subordination chains. ...
Cătaş, Adriana (2006)
Acta Universitatis Apulensis. Mathematics - Informatics
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Pashkouleva, Donka (2010)
Fractional Calculus and Applied Analysis
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MSC 2010: 30C45, 30C50 The 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 coefficients.
Alb Lupaş, Alina (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Najafzadeh, Shahram (2010)
Fractional Calculus and Applied Analysis
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MSC 2010: 30C45, 30C50 The purpose of the present paper is to introduce a new subclass of holomorphic univalent functions with negative and fixed finitely coefficient based on Salagean and Ruscheweyh differential operators. The various results investigated in this paper include coefficient estimates, extreme points and Radii properties.
Rabha W. Ibrahim (2013)
Matematički Vesnik
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