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  Volume 5, Issue 1, Article 11
 
Convolution Conditions for Spirallikeness and Convex Spirallikeness of Certain Meromorphic $p$-valent Functions

    Authors: V. Ravichandran, S. Sivaprasad Kumar, K.G. Subramanian,  
    Keywords: Meromorphic p-valent functions, Analytic functions, Starlike functions,
Convex functions, Spirallike functions, Convex Spirallike functions, Hadamard product (or Convolution), Subordination, Linear operator.
 
    Date Received: 27/10/03  
    Date Accepted: 11/12/03  
    Subject Codes:

Primary 30C45, Secondary 30C80.

 
    Editors: Herb Silverman,  
 
    Abstract:

In the present investigation, the authors derive necessary and sufficient conditions for spirallikeness and convex spirallikeness of a suitably normalized meromorphic p-valent function in the punctured unit disk, using convolution. Also we give an application of our result to obtain a convolution condition for a class of meromorphic functions defined by a linear operator.

         
       
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