A class of analytic functions based on convolution

We introduce a class <I>TS</I><SUB>p</SUB><SUP>g</SUP>(α) of analytic functions with negative coefficients defined by convolution with a fixed analytic function g(z)=z+<I>Σ</I><SUB>n=2</SUB><SUP>∞</SUP>b<SUB>n</SUB>z...

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Main Authors: H. Silverman, K.G. Subramanian, R. Thirumalaisamy, T.V. Sudharsan
Format: Article
Language:English
Published: University Constantin Brancusi of Targu-Jiu 2010-09-01
Series:Surveys in Mathematics and its Applications
Subjects:
Online Access:http://www.utgjiu.ro/math/sma/v05/p21.pdf
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author H. Silverman
K.G. Subramanian
R. Thirumalaisamy
T.V. Sudharsan
author_facet H. Silverman
K.G. Subramanian
R. Thirumalaisamy
T.V. Sudharsan
author_sort H. Silverman
collection DOAJ
description We introduce a class <I>TS</I><SUB>p</SUB><SUP>g</SUP>(α) of analytic functions with negative coefficients defined by convolution with a fixed analytic function g(z)=z+<I>Σ</I><SUB>n=2</SUB><SUP>∞</SUP>b<SUB>n</SUB>z<SUP>n</SUP>, b<SUB>n</SUB>>0, |z|<1. We obtain the coefficient inequality, coefficient estimate, distortion theorem, a convolution result, extreme points and integral representation for functions in the class <I>TS</I><SUB>p</SUB><SUP>g</SUP>(α).
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spelling doaj.art-b57a2acc48844ed2a2f7423a222923642022-12-22T02:46:35ZengUniversity Constantin Brancusi of Targu-JiuSurveys in Mathematics and its Applications1843-72651842-62982010-09-015 (2010)285295A class of analytic functions based on convolutionH. SilvermanK.G. SubramanianR. ThirumalaisamyT.V. SudharsanWe introduce a class <I>TS</I><SUB>p</SUB><SUP>g</SUP>(α) of analytic functions with negative coefficients defined by convolution with a fixed analytic function g(z)=z+<I>Σ</I><SUB>n=2</SUB><SUP>∞</SUP>b<SUB>n</SUB>z<SUP>n</SUP>, b<SUB>n</SUB>>0, |z|<1. We obtain the coefficient inequality, coefficient estimate, distortion theorem, a convolution result, extreme points and integral representation for functions in the class <I>TS</I><SUB>p</SUB><SUP>g</SUP>(α).http://www.utgjiu.ro/math/sma/v05/p21.pdf Analytic functionsStarlike functionsConvolution
spellingShingle H. Silverman
K.G. Subramanian
R. Thirumalaisamy
T.V. Sudharsan
A class of analytic functions based on convolution
Surveys in Mathematics and its Applications
Analytic functions
Starlike functions
Convolution
title A class of analytic functions based on convolution
title_full A class of analytic functions based on convolution
title_fullStr A class of analytic functions based on convolution
title_full_unstemmed A class of analytic functions based on convolution
title_short A class of analytic functions based on convolution
title_sort class of analytic functions based on convolution
topic Analytic functions
Starlike functions
Convolution
url http://www.utgjiu.ro/math/sma/v05/p21.pdf
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