On the spectrum of the curvature operator of a three-dimensional Lie group with a left-invariant Riemannian metric
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2017 ◽
Vol 28
(06)
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pp. 1750048
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2017 ◽
Vol 15
(01)
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pp. 1850015
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2010 ◽
Vol 65
(6)
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pp. 255-256
2014 ◽
Vol 195
(1)
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pp. 95-110
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