Non-diagonal four-dimensional cohomogeneity-one Einstein metrics in various signatures
Most known four-dimensional cohomogeneity-one Einstein metrics are diagonal in a basis defined by the left-invariant one-forms, though some essentially non-diagonal ones are known. We consider the problem of explicitly seeking non-diagonal Einstein metrics, and we find solutions which in some cases...
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| Médium: | Journal article |
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Elsevier
2017
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