On Birkhoff angles in normed spaces
Functional Analysis
2021-07-21 v1
Abstract
Associated to Birkhoff orthogonality, we study Birkhoff angles in a normed space and present some of their basic properties. We also discuss how to decide whether an angle is more acute or more obtuse than another. In addition, given two vectors and in a normed space, we study the formula for Birkhoff `cosine' of the angle from to from which we can, in principal, compute the angle. Some examples will be presented.
Cite
@article{arxiv.2107.09454,
title = {On Birkhoff angles in normed spaces},
author = {Hendra Gunawan and Muhamad Jamaludin and Mas Daffa Pratamadirdja},
journal= {arXiv preprint arXiv:2107.09454},
year = {2021}
}
Comments
10 pages