A Certain Subclass of Meromorphically Convex Functions with Negative Coefficients

Abstract

Abstract.In this paper we obtain coefficient inequalities, and distortion and clowhich are analytic in the punctured unit disk

Certain Properties of a Generalized Class of Analytic Functions Involving Some Convolution Operator

“…The class T was first introduced by Silverman [48] and later on studied extensively by a number of authors including the ones in [1, 2, 20-22, 35, 44, 49, 50]. Also see Srivastava et al [51][52][53][54][55][56][57].…”

Certain Subclasses of Meromorphically P-Valent Functions With Positve or Negative Coeficients Using Differential Operator

“…Where is the class of meromorphically pvalent convex functions of order ( (with positive or negative coefficients depending upon the value of the nonzero constant B) (see Duren [6], Goodman [7] and Srivastava and Owa [18]); (iv) , where is the class of meromorphically convex functions of order ( with negative coefficients (see Uralegaddi and Ganigi [19] and Srivastava et.al. [17]); Some other subclasses of the class were studied (for example) by Cho et al [4,5], Altintas et al [1], Liu [12], Liu and Srivastava [13,14], Joshi et al, [11], Raina and Srivastava [15] and Aouf and Shammaky [2]. The aim of this paper is to proving a systematic investigation of the various interesting properties and characteristics of functions belonging to the following subclasses and of the general class which we introduced above: Furthermore, since the condition is not actually a requirement for the definition (1.4), we may set in (1.4) and observe that the class consisting of meromorphically p-valent starike functions of order with positive coefficients given by (1.10).…”

A Certain Subclass of Meromorphically Multivalent Analytic Functions with Negative Coefficients

“…For instance, (Uralegaddi and Ganigi 1987;Srivastava et al, 1998;Aouf and Hossen, 1993;Liu and Srivastava, 2004;Aouf and Shammaky, 2005;Aouf and ElAshwah, 2009;Aouf, 2010;Kamali et al, 2011;Makinde, 2012).…”