TY - JOUR
AU - H. M. Srivastava
AU - M. Tahir
AU - B. Khan
AU - M. Darus
AU - N. Khan
AU - Q. Z. Ahmad
PY - 2021/09/16
Y2 - 2022/08/19
TI - Certain subclasses of meromorphically $q$-starlike functions associated with the $q$-derivative operators
JF - Ukrainsâ€™kyi Matematychnyi Zhurnal
JA - Ukr. Mat. Zhurn.
VL - 73
IS - 9
SE - Research articles
DO - 10.37863/umzh.v73i9.814
UR - http://umj.imath.kiev.ua/index.php/umj/article/view/814
AB - UDC 517.5The purpose of the present paper is to establish several general results concerning the partial sums of meromorphically starlike functions defined here by means of a certain class of $q$-derivative (or $q$-difference) operators. The familiar concept of neighborhood for meromorphic functions are also considered. Moreover, by using a Ruscheweyh-type $q$-derivative operator, we define and study another new class of functions emerging from the class of normalized meromorphic functions.
ER -