On pseudo-Riemannian Ricci-parallel Lie groups which are not Einstein

arXiv2404.13797MaRDI QIDQ6531505

Zaili Yan, Huihui An

Mathematics Subject Classification ID

Special Riemannian manifolds (Einstein, Sasakian, etc.) (53C25) Nilpotent and solvable Lie groups (22E25) Global differential geometry of Lorentz manifolds, manifolds with indefinite metrics (53C50)

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