In this paper, we investigate the properties of neighbourhoods offunctions for the classes U CV (α) and Sp(α). First we established an inclusion relationship between them and proved a necessary and sufficient conditioninterms of convolutions for a function f to be in Sp(α). Next we show thatthe class Sp(α) is closed under convolution with functions f (z) which are convex univalent. The results obtained in this which generalizes the results ofPadmanabhan [8] and Ronning [9]
Journal Section | Articles |
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Authors | |
Publication Date | December 1, 2014 |
Submission Date | April 4, 2015 |
Published in Issue | Year 2014 Volume: 2 Issue: 2 |