A Note on g-Angle between Two Subspaces in a Normed Space

2018/09/06 by Muhammad Nur, Hendra Gunawan, Nur, Muhammad +1
Mathematics · #15A03 #46B20 #51N15 #FOS: Mathematics #Functional Analysis (math.FA) #math.FA #msc:15A03 #msc:46B20 #msc:51N15

paper · pdf · doi:10.48550/arxiv.1809.01909

9 pages

arxiv created 2019/02/25 · arxiv updated 2019/02/26

Abstract

We introduce a new 2-norm on a normed space using a semi-inner product g on the space. Using the 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 \it et al. \citeNur1.

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