Geodesic
Some properties of certain subclasses of analytic functions with negative coefficients by using generalized Ruscheweyh derivative operator
Czechoslovak Mathematical Journal, Tome 60 (2010) no. 3, pp. 699-713 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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By making use of the known concept of neighborhoods of analytic functions we prove several inclusions associated with the $(j,\delta )$-neighborhoods of various subclasses of starlike and convex functions of complex order $b$ which are defined by the generalized Ruscheweyh derivative operator. Further, partial sums and integral means inequalities for these function classes are studied. Relevant connections with some other recent investigations are also pointed out.
By making use of the known concept of neighborhoods of analytic functions we prove several inclusions associated with the $(j,\delta )$-neighborhoods of various subclasses of starlike and convex functions of complex order $b$ which are defined by the generalized Ruscheweyh derivative operator. Further, partial sums and integral means inequalities for these function classes are studied. Relevant connections with some other recent investigations are also pointed out.
Classification : 30C45
Keywords: neighborhoods; partial sums; integral means; generalized Ruscheweyh derivative 
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Deniz, Erhan; Orhan, Halit. Some properties of certain subclasses of analytic functions with negative coefficients by using generalized Ruscheweyh derivative operator. Czechoslovak Mathematical Journal, Tome 60 (2010) no. 3, pp. 699-713. http://geodesic.mathdoc.fr/item/CMJ_2010_60_3_a8/

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