Fourth hankel determinant for a subclass of starlike functions
Let B be the class of normalized starlike functions f z which are analytic on an open unit disc E z z { : 1} and satisfy Re ' '' 0 f z zf z for some 0 1 and 0 1 . In this paper, we will obtain a sharp bound of the fourth Hankel determinant, H4 1...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/16076/1/jqma-16-2-paper12-1.pdf http://journalarticle.ukm.my/16076/ https://www.ukm.my/jqma/current/ |
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| Summary: | Let B be the class of normalized starlike functions f z which are analytic on an open unit disc E z z { : 1} and satisfy Re ' '' 0 f z zf z for some 0 1 and 0 1 . In this paper, we will obtain a sharp bound of the fourth Hankel determinant, H4 1 . |
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