Gradings on d4

In this work we describe fine gradings of the simple finite-dimensional Lie algebra d4 over an algebraically closed field of characteristic zero. We use two independent approaches. The first one involves some computational tools while the second is of a more conceptual nature and is related to octonions and triality. A common feature of both viewpoints is the use of certain results of the theory of linear algebraic groups.

C. Draper < cdf@uma.es >

C. Martín < candido@apncs.cie.uma.es >

A. Viruel < viruel@agt.cie.uma.es >