TY - JOUR AU - T. Janani AU - S. Yalçın PY - 2021/11/23 Y2 - 2024/03/28 TI - Initial seven coefficient estimates for a subclass of bi-starlike functions JF - Ukrains’kyi Matematychnyi Zhurnal JA - Ukr. Mat. Zhurn. VL - 73 IS - 11 SE - Research articles DO - 10.37863/umzh.v73i11.1046 UR - https://umj.imath.kiev.ua/index.php/umj/article/view/1046 AB - UDC 517.5In the present article, a subclass of bi-starlike functions is studied and initial seven Taylor–Maclaurin coefficient estimates $|a_{2}|, |a_{3}|, \ldots , |a_{7}|$ for functions in the subclass of the function class $ \Sigma $ are obtained for the first time in the literature. Few new or known consequences of the results are also pointed out. ER -