An extension to higher dimensions of the Bel-Debever characterization of the Weyl tensor is considered, which determines the Weyl type in a frame independent way. We further comment on a Cartan-like geometrical interpretation of WANDs in terms of their invariance properties under parallel transport around infinitesimal loops.
An extension to higher dimensions of the Bel-Debever characterization of the Weyl tensor is considered, which determines the Weyl type in a frame independent way. We further comment on a Cartan-like geometrical interpretation of WANDs in terms of their invariance properties under parallel transport around infinitesimal loops. (en)