Some coefficient bounds associated with transforms of bounded turning functions
DOI:
https://doi.org/10.37863/umzh.v74i12.6671Keywords:
holomorphic bounded turning function, upper bound, functionals connected with Hankel determinant, positive real part function.Abstract
UDC 517.5
We present the derivation of an upper bound for the Hankel determinants of certain orders linked with the kth-root transform [f(zk)]1k of the holomorphic mapping f(z) whose derivative has a positive real part with normalization, namely, f(0)=0 and f′(0)=1.
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