Second Hankel Determinants for the Class of Typically Real Functions

Paweł Zaprawa

Abstract and Applied Analysis, 2016, vol. 2016, 1-7

Abstract:

We discuss the Hankel determinants for typically real functions, that is, analytic functions which satisfy the condition in the unit disk Δ. Main results are concerned with and . The sharp upper and lower bounds are given. In general case, for , the results are not sharp. Moreover, we present some remarks connected with typically real odd functions.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:3792367

DOI: 10.1155/2016/3792367

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