A note on the g-angle between subspaces of a normed space

被引:0
|
作者
Muhammad Nur
Hendra Gunawan
机构
[1] Hasanuddin University,Department of Mathematics, Faculty of Mathematics and Natural Sciences
[2] Bandung Institute of Technology,Analysis and Geometry Group, Faculty of Mathematics and Natural Sciences
来源
Aequationes mathematicae | 2021年 / 95卷
关键词
2-Norms; -Angles; Subspaces; Normed spaces; 15A03; 46B20; 51N15;
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学科分类号
摘要
We introduce a new 2-norm on a normed space using a semi-inner product g on the space. Using this 2-norm, we propose a formula for the g-angle between 2-dimensional subspaces in the space. Our formula serves as a revision of the one proposed by Nur et al. (Beitr. Algebra Geom. 59(1):133–143, 2018).
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页码:309 / 318
页数:9
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