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http://dx.doi.org/10.5666/KMJ.2013.53.2.295

The Unit Ball of $\mathcal{L}_s(^2d_*(1,w)^2)$  

Kim, Sung Guen (Department of Mathematics, Kyungpook National University)
Publication Information
Kyungpook Mathematical Journal / v.53, no.2, 2013 , pp. 295-306 More about this Journal
Abstract
First we present the explicit formula for the norm of a symmetric bilinear form on the 2-dimensional real predual of the Lorentz sequence space $d_*(1,w)^2$. Using this formula, we classify the extreme points of the unit ball of $\mathcal{L}_s(^2d_*(1,w)^2)$.
Keywords
extreme symmetric bilinear forms; the 2-dimensional real predual of the Lorentz sequence space;
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