$\mathbf {5 \times 5}$ -graded Lie algebras, cubic norm structures and quadrangular algebras

We study simple Lie algebras generated by extremal elements, over arbitrary fields of arbitrary characteristic. We show the following: (1) If the extremal geometry contains lines, then the Lie algebra admits a $5 \times 5$ -grading that can be parametrized by a cubic norm structure; (2) If the...

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Bibliographic Details
Main Authors: Tom De Medts, Jeroen Meulewaeter
Format: Article
Language:English
Published: Cambridge University Press 2025-01-01
Series:Forum of Mathematics, Sigma
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2050509425000465/type/journal_article
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