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...
| Main Authors: | , , |
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| Format: | Article |
| Published: |
Penerbit ukm
2006
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| Online Access: | http://journalarticle.ukm.my/1819/ http://journalarticle.ukm.my/1819/ |