Fekete-Szeg Problems for Certain Classes of Meromorphic Functions Using q-Derivative Operator

作者：Huo TANG; H.M.ZAYED; A.O.MOSTAFA; M.K.AOUF

来源：Journal of Mathematical Research with Applications, 2018, 38(03): 236-246.

In this paper, we introduce two subclasses Σ*q(φ) and Σ*q,α(φ) of meromorphic functions f(z) for whichqz Dq f(z)f(z)? φ(z) and