Zong-Tao LI. THE fekete-szego Inequality for a Subclass of analytic Functions[J]. Journal of South China Normal University (Natural Science Edition), 2017, 49(3): 114-116.
Citation:
Zong-Tao LI. THE fekete-szego Inequality for a Subclass of analytic Functions[J]. Journal of South China Normal University (Natural Science Edition), 2017, 49(3): 114-116.
Zong-Tao LI. THE fekete-szego Inequality for a Subclass of analytic Functions[J]. Journal of South China Normal University (Natural Science Edition), 2017, 49(3): 114-116.
Citation:
Zong-Tao LI. THE fekete-szego Inequality for a Subclass of analytic Functions[J]. Journal of South China Normal University (Natural Science Edition), 2017, 49(3): 114-116.
THE fekete-szego Inequality for a Subclass of analytic Functions
By making differential subordination, a new function of is introduced, among them, . By using inequality of Schwarts function, if , ,then and for all the following bound is sharp . The extremal function of is given, some existing results are expanded by the conclusion of this article.