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arXiv:0809.4908 [math.DG]AbstractReferencesReviewsResources

The signature of the Ricci curvature of left invariant Riemannian metrics on 4-dimensional Lie groups

A. G. Kremlyov, Yu. G. Nikonorov

Published 2008-09-29, updated 2013-11-30Version 2

In this paper, we present the classification of all possible signatures of the Ricci curvature of left-invariant Riemannian metrics on 4-dimensional Lie groups and discuss some related questions.

Comments: 12 pages, extended and corrected version
Categories: math.DG
Subjects: 53C20
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