Geodesic
On The Commutativity of J-Rings
Canadian journal of mathematics, Tome 19 (1967) no. 1, pp. 1289-1292

Voir la notice de l'article provenant de la source Cambridge University Press

A ring R is called a J-ring if there exists an integer n > 1 such that xn = x for every x ∈ R. The following beautiful theorem due to Jacobson (4, 5) is a generalization of Wedderburn's theorem, which asserts that every finite division ring must be a field. 
Luh, Jiang. On The Commutativity of J-Rings. Canadian journal of mathematics, Tome 19 (1967) no. 1, pp. 1289-1292. doi: 10.4153/CJM-1967-117-4
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