发表机构
Indian Institute of Technology Madras(印度马德拉斯理工学院)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该研究在数值半径型(半)范数下的向量值连续函数空间$C(K,X)$中,推广抽象数值域理论,刻画其左、右对称点,并得到紧算子空间$\n\nt\nh\ne \nK\n(X)$的对应结果。
AI 中文摘要
我们在配备数值半径型(半)范数的向量值连续函数空间$C(K,X)$中研究Birkhoff-James正交性与局部对称点。我们将抽象数值域理论推广到半赋范空间,获得$C(K,X)$关于数值半径(半)范数的左、右对称点的完整刻画,同时建立了$X$上紧算子空间$\\ mathcal{K}(X)$的对应结果。
英文摘要
We study Birkhoff-James orthogonality and local symmetric points in the space $C(K,X)$ of vector-valued continuous functions equipped with a numerical-radius type (semi-)norm. We extend the theory of abstract numerical ranges to semi-normed spaces and obtain complete characterizations of the left and right symmetric points of $C(K,X)$ with respect to the numerical-radius (semi-) norm. We also establish corresponding results for the space $\mathcal{K}(X)$ of compact operators on $X$.