6533b86dfe1ef96bd12c9687

RESEARCH PRODUCT

Non-integrality of the PI-exponent of special Lie algebras

Antonio GiambrunoMikhail Zaicev

subject

Discrete mathematicsPure mathematicsAdjoint representation of a Lie algebraApplied MathematicsSimple Lie groupLie algebraLie algebraReal formKilling formAffine Lie algebraMathematicsLie conformal algebraGraded Lie algebra

description

If L is a special Lie algebra over a field of characteristic zero, its sequence of codimensions is exponentially bounded. The PI-exponent measures the exponential rate of growth of such sequence and here we give a first example of a special Lie algebra whose (upper and lower) PI-exponent is non-integer.

10.1016/j.aam.2013.08.004http://hdl.handle.net/10447/98493