We explicitly determine invariant Ricci collineations on four-dimensional non-reductive homogeneous pseudo-Riemannian manifolds, and invariant matter collineations for the Lorentzian examples.
Invariant symmetries on non-reductive homogeneous pseudo-Riemannian four-manifolds
CALVARUSO, Giovanni;
2015-01-01
Abstract
We explicitly determine invariant Ricci collineations on four-dimensional non-reductive homogeneous pseudo-Riemannian manifolds, and invariant matter collineations for the Lorentzian examples.File in questo prodotto:
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