Anti-N-order polynomial Daugavet property on Banach spaces

被引:0
|
作者
Emenyu, John [1 ]
机构
[1] Mbarara Univ Sci & Technol, Dept Math, POB 1410, Mbarara, Uganda
关键词
Banach spaces; local and uniform convexity; polynomials; Daugavet Equation; N-order Polynomial Daugavet property; anti-N-order Polynomial Daugavet property; OPERATORS; EQUATION; APPROXIMATION; MAPPINGS;
D O I
10.22075/ijnaa.2019.16371.1865
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We generalize the notion of the anti-Daugavet property (a-DP) to the anti -N-order Polynomial Daugavet property (a-NPDP) for Banach spaces by identifying a good spectrum of a polynomial and prove that locally uniformly alternatively convex or smooth Banach spaces have the a-mDP for rank-1 polynomials. We then prove that locally uniformly convex Banach spaces have the aNPDP for compact polynomials if and only if their norms are eigenvalues, and uniformly convex Banach spaces have the a-NPDP for continuous polynomials if and only if their norms belong to the approximate spectra.
引用
收藏
页码:1097 / 1105
页数:9
相关论文
共 50 条