On classes of functions in the unit disk.
Ibrahim, Rabha W., Darus, Maslina (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Ibrahim, Rabha W., Darus, Maslina (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Murugusundaramoorthy, G., Rosy, T., Muthunagai, K. (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Nechita, Veronica Oana (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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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.
Somia Muftah Amsheri, Valentina Zharkova (2011)
Kragujevac Journal of Mathematics
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Breaz, Daniel, Owa, Shigeyoshi, Breaz, Nicoleta (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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Bălăeţi, Camelia Mădălina (2009)
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.
Ravichandran, V. (2004)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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A. O. Mostafa (2010)
Matematički Vesnik
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Çag̃lar, M., Polatog̃lu, Y, Şen, A., Yavuz, E., Owa, S. (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
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C. Selvaraj, O. S. Babu, G. Murugusundaramoorthy (2013)
Annales UMCS, Mathematica
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For functions of the form f(z) = zp + ∑∞n=1 ap+n zp+n we obtain sharp bounds for some coefficients functionals in certain subclasses of starlike functions. Certain applications of our main results are also given. In particular, Fekete-Szegö-like inequality for classes of functions defined through extended fractional differintegrals are obtained