most citedOn Hankel determinant for some classes of univalent functions

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math.CV20091 cited

Bounds on the coefficients of certain analytic and univalent functions

K. O. Babalola

For the real number , we use a technique due to Nehari and Netanyahu and an application of certain integral iteration of Caratheodory functions to find the best-possible upper…

math.CV20092 cited

New Subclasses of Analytic and Univalent Functions Involving Certain Convolution Operators

K. O. Babalola

Let be the open unit disk . Let be the class of analytic functions in , which have the form . We define operators $L_n^σ\c…

math.CV2009

A sharp inclusion theorem for a certain class of analytic functions defined by the Salagean derivative

K. O. Babalola, T. O. Opoola

In this short note we employ the Briot-Bouquet differential subordination to determine the best possible inclusion relation within a certain family of analytic functions defined by…

math.CV20091 cited

Some Applications of a Lemma Concerning Analytic Functions Having Positive Real Parts in the Unit Disk

T. O. Opoola, K. O. Babalola

In this paper we give some applications of a lemma of Babalola and Opoola \cite{BO}, which is a classical extension of an earlier one by Lewandowski, Miller and Zlotkiewicz \cite{L…

math.CV2009

On some functionals associated with certain coefficient problems

K. O. Babalola

Under certain conditions, we obtain sharp bounds on some functionals defined in the coefficient space of starlike functions. It has been found that the functionals are closely asso…

math.CV2009

An invitation to the theory of geometric functions

K. O. Babalola

This note is an invitation to the theory of geometric functions. The foundation techniques and some of the developments in the field are explained with the mindset that the audienc…