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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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