Hankel determinant for the class of K(α, β)
Let f(z)=z+∑anzn be an analytic function in the open unit disc. A sharp upper bound is obtained for the functional |a2a4-a23| for the class k(α,β) of normalised close-to-convex functions defined in the open unit disc
| Main Authors: | , |
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| Format: | Article |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2010
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| Online Access: | http://journalarticle.ukm.my/1975/ http://journalarticle.ukm.my/1975/ |
| Summary: | Let f(z)=z+∑anzn be an analytic function in the open unit disc. A sharp upper
bound is obtained for the functional |a2a4-a23| for the class k(α,β) of normalised
close-to-convex functions defined in the open unit disc |
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