【摘要】 本文中我们指出1/2阶星像函数的系数之间的一个关系,证明了凸像函数的奇次幂之和是星像函数,并且给出凸像函数f的前n项之和S_M(z,f)是近于凸像函数的条件。更多还原

【Abstract】 In this paper, we show the relation among the coefficients of starlke fu-netioas of order l/2, prove that the sum of odd power of convex funtion is a starlike function and also give the conditions that the sum Sn(z,f)of the first n terms of convex function is a tlose to convex funetion.更多还原