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Some families of multivalently analytic functions with negative coefficients. (English) Zbl 0883.30011

The authors introduce and study three novel subclasses of analytic and \(p\)-valent functions with negative coefficients. In addition to finding a necessary and sufficient condition for a function to belong to each of these subclasses, a number of other potentially useful properties and characteristics of functions in these subclasses are obtained. Finally, several applications involving an integral operator and certain fractional calculus operators are also considered.
Reviewer: H.M.Srivastava

MSC:

30C45 Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.)
33C05 Classical hypergeometric functions, \({}_2F_1\)
26A33 Fractional derivatives and integrals

References:

[1] Altintaş, O.; Irmak, H.; Srivastava, H. M.: Fractional calculus and certain starlike functions with negative coefficients. Comput. math. Appl. 30, 9-15 (1995) · Zbl 0838.30011
[2] Bernardi, S. D.: Convex and starlike univalent functions. Trans. amer. Math. soc. 135, 429-446 (1969) · Zbl 0172.09703
[3] Chen, M. -P.; Aouf, M. K.: On certain fractional operators for certain classes of multivalent functions with negative coefficients. J. fractional calculus 10, 109-115 (1996) · Zbl 0886.30008
[4] Duren, P. L.: Univalent functions, grundlehren der mathematischen wissenschaften. (1983)
[5] Irmak, H.: Certain subclasses ofp. Bull. Calcutta math. Soc. 87, 589-598 (1995) · Zbl 0862.30017
[6] Libera, R. J.: Some classes of regular univalent functions. Proc. amer. Math. soc. 16, 755-758 (1996) · Zbl 0158.07702
[7] Livingston, A. E.: On the radius of univalence of certain analytic functions. Proc. amer. Math. soc. 17, 352-357 (1966) · Zbl 0158.07701
[8] Owa, S.: On the distortion theorems. I. Kyungpook math. J. 18, 53-59 (1978) · Zbl 0401.30009
[9] Owa, S.; Srivastava, H. M.: Univalent and starlike generalized hypergeometric functions. Canad. J. Math. 39, 1057-1077 (1987) · Zbl 0611.33007
[10] Srivastava, H. M.; Aouf, M. K.: A certain fractional derivative operator and its applications to a new class of analytic and multivalent functions with negative coefficients. I. J. math. Anal. appl 171, 1-13 (1992) · Zbl 0760.30006
[11] Srivastava, H. M.; Owa, S.: Univalent functions, fractional calculus, and their applications. (1989) · Zbl 0683.00012
[12] Srivastava, H. M.; Owa, S.: Current topics in analytic function theory. (1992) · Zbl 0976.00007
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