JOURNAL OF MATHEMATICAL PHYSICS, vol.32, no.5, pp.1176-1181, 1991 (SCI-Expanded)
The generators of the subgroups SO(7) L,R and the cosets S(L,R)7 = SO(8)/SO(7) L,R and SIGMA-L,R7 = SO(7) L,R/G2 of SO(8) are constructed out of the generators of SO(8) using octonionic structure tensors, and the representations of these generators are given as products of octonions.