arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2005.03714math.CV
收藏

具有固定第二系数的Janowski星形函数的充分条件

Sufficient Conditions For Janowski Starlike Functions With Fixed Second Coefficient

Najla M. Alarifi

摘要:

设A,B,D,E属于[-1,1],p(z)是定义在开单位圆上的具有固定初始系数的解析函数.确定了A,B,D和E上的条件,使得1+α zp '(z)从属于(1+Dz)/(1+Ez),意味着p(z)从属于(1+Az)/(1+Bz)以及其它类似的蕴涵,包括1+α zp'(z)/p(z),αp(z)+(1-α)p2(z)+ λ zp '(z),和(1-α)p(z)+{alpha}(1+ zp'(z)/p(z)).同时,得到了第二阶系数固定的Janowski星形的充分条件.

英文摘要:

Let A,B,D,E belong to [-1, 1] and let p(z) be an analytic function with fixed initial coefficient defined in the open unit disk. Conditions on A,B,D,and E are determined so that 1+αzp'(z) being subordinated to (1+Dz)/(1+Ez) implies that p(z) is subordinated to (1+Az)/(1+Bz) and other similar implications involving 1+αzp'(z)/p(z), αp2(z)+λzp'(z),αp(z)+(1-α)p2(z)+λzp'(z),and (1-α)p(z)+{alpha}(1+zp'(z)/p(z)). Also, sufficient conditions for Janowski starlikeness with fixed second coefficient are obtained.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑