Affiliation:
1. School of Mathematics and Computer Science, Jiangxi Science and Technology Normal University , Nanchang , Jiangxi , CHINA
Abstract
ABSTRACT
In this paper, the sharp solutions of Fekete-Szegö problems are provided for class of quasi-convex mappings f
1 of type B and class of quasi-convex mappings f
2 of type B and order α defined on the unit ball in a complex Banach space, respectively, where x = 0 is a zero of order k + 1 of fi
(x) − x (i = 1, 2). Compare with some recent works, our main theorems hold without additional restrictive conditions. Also, the proof of our main theorems are more simple than those given in the previous results.
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