CONVOLUTION CONDITIONS FOR SPIRALLIKENESS AND CONVEX SPIRALLIKENESS OF CERTAIN MEROMORPHIC p-VALENT FUNCTIONS

نویسندگان

  • V. RAVICHANDRAN
  • S. SIVAPRASAD
  • K. G. SUBRAMANIAN
چکیده

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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تاریخ انتشار 2003