本文研究了圆环域U内亚纯星象和凸象函数的某些新子类的拟Hadamard卷积.利用卷积方法,获得了该类函数的与拟Hadamard卷积有关的某些性质,推广了一些已知结果.
In this paper, we study quasi-Hadamard product problem for certain new sub- classes of meromorphic starlike and convex functions in the punctured disk U*. By using the method of convolution, we derive some results associated with the quasi-Hadamard product of functions belonging to these subclasses, which generalizes some known results.