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arXiv · 2602.23207

A Study of the Extreme Points in the Unit Ball of $JT$

Spiros A. Argyros
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Abstract

In this note, we investigate the extreme points of the unit ball of the James Tree space ($JT$). We relate the geometric structure of $JT$ to the classical James space $J$ and provide partial characterizations of extremality based on the concept of separated vectors. We provide a complete characterization for positive vectors and establish the equal sums property for positive extreme points.

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BibTeXRIS

Spiros A. Argyros. 2026-02-26. A Study of the Extreme Points in the Unit Ball of $JT$. https://arxiv.org/abs/2602.23207

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