One of the most important problems in the study of geometric function theory is knowing how to obtain the sharp bounds of the coefficients that appear in the Taylor–Maclaurin series of …
S Sümer Eker, A Lecko, B Çekiç, B Şeker - Bulletin of the Malaysian …, 2023 - Springer
The aim of this paper is to determine sharp bound for the second Hankel determinant of logarithmic coefficients H 2, 1 (F f/2) of strongly Ozaki close-to-convex functions in the open …
In numerous geometric and physical applications of complex analysis, estimating the sharp bounds of coefficient-related problems of univalent functions is very important due to the fact …
L Shi, M Arif - Fractal and Fractional, 2023 - mdpi.com
In the present paper, we consider a subclass of starlike functions G 3/2 defined by the ratio of analytic representations of convex and starlike functions. The main aim is to determine the …
In this article, we first consider the fractional q-differential operator and the λ, q-fractional differintegral operator D q λ: A→ A. Using the λ, q-fractional differintegral operator, we define …
GI Oros, G Oros, S Owa - Fractal and Fractional, 2022 - mdpi.com
The results contained in this paper are the result of a study regarding fractional calculus combined with the classical theory of differential subordination established for analytic …
In this article, we introduce two new classes of analytic functions J tanh and JSG which are associated with the activation functions and defined by the ratio of analytic representations …
B Şeker, B Çekiç, S Sümer, O Akçiçek - Lithuanian Mathematical Journal, 2024 - Springer
In this paper, we obtain sharp bounds for the second Hankel determinant of logarithmic coefficients H 2, 1 (F f/2) of bounded turning functions of order α. Furthermore, we obtain …
This Special Issue aims to highlight the latest developments in the research concerning complex-valued functions from the perspective of geometric function theory. Contributions …