In this paper, we prove that： if M is a family which has convexity radius, then the convexity radius for M and the second order item coefficients of every mapping in M are closely related to each other. As an applica...In this paper, we prove that： if M is a family which has convexity radius, then the convexity radius for M and the second order item coefficients of every mapping in M are closely related to each other. As an application, we show that the convexity radius of starlike mappings r（S＊） 〈 2-3～（1/2）.展开更多
文摘In this paper, we prove that： if M is a family which has convexity radius, then the convexity radius for M and the second order item coefficients of every mapping in M are closely related to each other. As an application, we show that the convexity radius of starlike mappings r（S＊） 〈 2-3～（1/2）.
