  Based on a fundamental symmetry between space, time, mass and charge, a
series of group structures of physical interest is generated, ranging from C2
to E8. The most significant result of this analysis is a version of the Dirac
equation combining quaternions and multivariate vectors, which is already
second quantized and intrinsically supersymmetric, and which automatically
leads to a symmetry breaking, with the creation of specific particle structures
and a mass-generating mechanism.
