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Lorentz Ricci solitons of 4-dimensional non-Abelian nilpotent Lie groups. (arXiv:2108.11380v1 [math.DG]) http://arxiv.org/abs/2108.11380
Lorentz Ricci solitons of 4-dimensional non-Abelian nilpotent Lie groups. (arXiv:2108.11380v1 [math.DG]) http://arxiv.org/abs/2108.11380