Gradings on the Albert algebra and on
Cristina Draper Fontanals
Universidad de Málaga, SpainCándido Martín González
Universidad de Málaga, Spain
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Abstract
We study group gradings on the Albert algebra and on the exceptional simple Lie algebra over algebraically closed fields of characteristic zero. The immediate precedent of this work is [Draper, C. and Martin, C.: Gradings on . Linear Algebra Appl. 418 (2006), no. 1, 85-111] where we described (up to equivalence) all the gradings on the exceptional simple Lie algebra . In the cases of the Albert algebra and , we look for the nontoral gradings finding that there are only eight nontoral nonequivalent gradings on the Albert algebra (three of them being fine) and nine on (also three of them fine).
Cite this article
Cristina Draper Fontanals, Cándido Martín González, Gradings on the Albert algebra and on . Rev. Mat. Iberoam. 25 (2009), no. 3, pp. 841–908
DOI 10.4171/RMI/585