Hankel determinant for functions starlike and convex with respect to symmetric points
Sakaguchi (1959) introduced the class of functions S*s , starlike with respect to symmetric points. In 1977, Das and Singh introduced similar class of functions Cs , convex with respect to symmetric points. Here, upper bound for the functional |a2a4-a23| is attained for functions f(z)=z+ ∑ anzn...
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my-ukm.journal.18192011-06-21T07:03:05Z http://journalarticle.ukm.my/1819/ Hankel determinant for functions starlike and convex with respect to symmetric points Aini Janteng, Suzeini Abdul Halim, Maslina Darus, Sakaguchi (1959) introduced the class of functions S*s , starlike with respect to symmetric points. In 1977, Das and Singh introduced similar class of functions Cs , convex with respect to symmetric points. Here, upper bound for the functional |a2a4-a23| is attained for functions f(z)=z+ ∑ anzn belonging to S*s and Cs . The result obtained is sharp Penerbit ukm 2006-07 Article PeerReviewed Aini Janteng, and Suzeini Abdul Halim, and Maslina Darus, (2006) Hankel determinant for functions starlike and convex with respect to symmetric points. Journal of Quality Measurement and Analysis, 2 (1). pp. 37-43. ISSN 1823-5670 http://www.ukm.my/~ppsmfst/jqma/index.html |
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| description |
Sakaguchi (1959) introduced the class of functions
S*s , starlike with respect to symmetric points.
In 1977, Das and Singh introduced similar class of functions Cs , convex with respect to
symmetric points. Here, upper bound for the functional |a2a4-a23| is attained for functions f(z)=z+ ∑ anzn
belonging to S*s and Cs . The result obtained is sharp |
| format |
Article |
| author |
Aini Janteng, Suzeini Abdul Halim, Maslina Darus, |
| spellingShingle |
Aini Janteng, Suzeini Abdul Halim, Maslina Darus, Hankel determinant for functions starlike and convex with respect to symmetric points |
| author_facet |
Aini Janteng, Suzeini Abdul Halim, Maslina Darus, |
| author_sort |
Aini Janteng, |
| title |
Hankel determinant for functions starlike and convex with respect to symmetric points |
| title_short |
Hankel determinant for functions starlike and convex with respect to symmetric points |
| title_full |
Hankel determinant for functions starlike and convex with respect to symmetric points |
| title_fullStr |
Hankel determinant for functions starlike and convex with respect to symmetric points |
| title_full_unstemmed |
Hankel determinant for functions starlike and convex with respect to symmetric points |
| title_sort |
hankel determinant for functions starlike and convex with respect to symmetric points |
| publisher |
Penerbit ukm |
| publishDate |
2006 |
| url |
http://journalarticle.ukm.my/1819/ http://www.ukm.my/~ppsmfst/jqma/index.html |
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1643735166554734592 |