Abstract
We study three-dimensional Lorentzian homogeneous Ricci solitons, proving the existence of shrinking, expanding and steady Ricci solitons. For all the non-trivial examples, the Ricci operator is not diagonalizable and has three equal eigenvalues.
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Brozos-Vázquez, M., Calvaruso, G., García-Río, E. et al. Three-dimensional Lorentzian homogeneous Ricci solitons. Isr. J. Math. 188, 385–403 (2012). https://doi.org/10.1007/s11856-011-0124-3
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DOI: https://doi.org/10.1007/s11856-011-0124-3