以复分析和泛函分析为工具,证明了α次殆β型螺形映射关于推广Roper-suffridge算子在复Hilbert空间与Banach空间上保持不变性.
Using complex analysis and functional analysis, deduces that they keep the properties of almost spirallike mappings of type α and orderβin complex Hilbert and Banach space.