Abstract
Let \( \mathfrak{L} \) be a finite dimensional Lie algebra over a field of characteristic p, let \( \mathfrak{A} \) be the universal associative algebra of \( \mathfrak{L} \) ([1] and [4]) and let \( \mathfrak{C} \) be the center of \( \mathfrak{A} \). In this note we prove that if a is a linear element of \( \mathfrak{A} \) then there exists a non-zero polynomial φ such that <j> (a) ε \( \mathfrak{C} \). We use this result to obtain the following: (1) a simple direct proof of Iwasawa’s theorem ([2], p. 420) that every finite dimensional Lie algebra of characteristic p has a faithful finite dimensional representation, (2) a proof of a conjecture of Chevalley that every finite dimensional Lie algebra of characteristic p has a representation which is not completely reducible, (3) a proof that \( \mathfrak{A} \) can be imbedded in a division algebra.
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References
G. Birkhoff, “Representability of Lie algebras…,” Annals of Mathematics, vol. 38 (1937), pp. 326–332.
K. Iwasawa, “On the representation of Lie algebras,” Japanese Journal of Mathematics, vol. 19 (1948), pp. 405–426.
N. Jacobson, “Restricted Lie algebras of characteristic p,” Transactions of the American Mathematical Society, vol. 50 (1941), pp. 15–25.
E. Witt, „Treue Darstellung Liescher Ringe,“ Journal für die reine und angewandedte Mathematik, vol. 177 (1937), pp. 152–160.
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© 1989 Birkhäuser Boston
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Jacobson, N. (1989). A Note on Lie Algebras of Characteristic p . In: Nathan Jacobson Collected Mathematical Papers. Contemporary Mathematicians. Birkhäuser Boston. https://doi.org/10.1007/978-1-4612-3694-8_12
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DOI: https://doi.org/10.1007/978-1-4612-3694-8_12
Publisher Name: Birkhäuser Boston
Print ISBN: 978-1-4612-8215-0
Online ISBN: 978-1-4612-3694-8
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