A note on a subclass of analytic functions defined by a generalized Sălăgean operator.
Alb Lupaş, Alina, Cătaş, Adriana (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
Alb Lupaş, Alina, Cătaş, Adriana (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
Richard Fournier (1995)
Banach Center Publications
Similarity:
The problem of estimating the radius of starlikeness of various classes of close-to-convex functions has attracted a certain number of mathematicians involved in geometric function theory ([7], volume 2, chapter 13). Lewandowski [11] has shown that normalized close-to-convex functions are starlike in the disc . Krzyż [10] gave an example of a function , non-starlike in the unit disc , and belonging to the class H = f | f’() lies in the right half-plane. More generally let H* = f |...
Pashkouleva, Donka (2010)
Fractional Calculus and Applied Analysis
Similarity:
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.
Acu, Mugur (2005)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
Similarity:
Oladipo, A.T. (2009)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
Alb Lupaş, Alina (2009)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
Darus, M., Ibrahim, R. (2010)
Fractional Calculus and Applied Analysis
Similarity:
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.
Nechita, Veronica Oana (2008)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
A. W. Goodman (1991)
Annales Polonici Mathematici
Similarity:
We introduce a new class of normalized functions regular and univalent in the unit disk. These functions, called uniformly convex functions, are defined by a purely geometric property. We obtain a few theorems about this new class and we point out a number of open problems.
Bălăeţi, Camelia Mădălina (2009)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
Alb Lupaş, Alina (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
Similarity:
Shammugam, T.N., Ramachandran, C., Darus, M., Sivasubramanian, S. (2007)
Acta Mathematica Universitatis Comenianae. New Series
Similarity: