Abstract
ABSTRACT For a restricted Lie algebra L over a field of characteristic p > 0 we study the Lie nilpotency index t L (u(L)) of its restricted universal enveloping algebra u(L). In particular, we determine an upper and a lower bound for t L (u(L)). Finally, under the assumption that L is p-nilpotent and finite-dimensional, we establish when the Lie nilpotency index of u(L) is maximal. Communicated by I. Shestakov.
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