We determine the admissible forms for the Ricci operator of three-dimensional locally homogeneous Lorentzian manifolds.
@article{bwmeta1.element.doi-10_2478_s11533-008-0061-5,
author = {Giovanni Calvaruso and Oldrich Kowalski},
title = {On the Ricci operator of locally homogeneous Lorentzian 3-manifolds},
journal = {Open Mathematics},
volume = {7},
year = {2009},
pages = {124-139},
zbl = {1180.53070},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0061-5}
}
Giovanni Calvaruso; Oldrich Kowalski. On the Ricci operator of locally homogeneous Lorentzian 3-manifolds. Open Mathematics, Tome 7 (2009) pp. 124-139. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_s11533-008-0061-5/
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