Bulletin of the
Korean Mathematical Society
BKMS

ISSN(Print) 1015-8634 ISSN(Online) 2234-3016

Article

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Bull. Korean Math. Soc. 2017; 54(2): 417-428

Online first article March 9, 2017      Printed March 31, 2017

https://doi.org/10.4134/BKMS.b150851

Copyright © The Korean Mathematical Society.

The unit ball of ${\mathcal L}(^2\mathbb{R}^2_{h(w)})$

Sung Guen Kim

Kyungpook National University

Abstract

We classify the extreme bilinear forms of the unit ball of the space of bilinear forms on $\mathbb{R}^2$ with hexagonal norms.

Keywords: bilinear forms, extreme points, hexagonal norms on $\mathbb{R}^2$

MSC numbers: Primary 46A22