1011.4925 (F. J. Vanhecke et al.)

On the finite spectral triple of an almost-commutative geometry    [PDF]

F. J. Vanhecke, A. R. da Silva, C. Sigaud

In this short communication, we examine the relevance of the signature of the space-time metric in the construction of the product of a pseudo-Riemannian spectral triple with a finite triple describing the internal geometry. We obtain arguments favouring the appearance of SU(2) and U(1) as gauge groups in the standard model.

View original: http://arxiv.org/abs/1011.4925