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gptkb:de_Sitter_group
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gptkb:de_Sitter_space
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gptkb:orthogonal_group_O(1,3)
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gptkb:Minkowski_metric
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gptkb:orthogonal_group_O(3)
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sphere S^2
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gptkb:SO(n)
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gptkb:n-dimensional_Euclidean_space_(orientation-preserving)
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gptkb:SO(1,4)
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gptkb:de_Sitter_spacetime
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gptkb:SO(3,1)
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gptkb:Minkowski_space
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gptkb:orthogonal_group_O(3)
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Euclidean 3-space (linear isometries)
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gptkb:orthogonal_group_O(1,3)
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hyperbolic 3-space
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gptkb:SO(1,4)
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gptkb:4-dimensional_de_Sitter_space
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gptkb:Euclidean_group_E(3)
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Euclidean space R^3
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gptkb:anti-de_Sitter_group
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gptkb:anti-de_Sitter_space
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gptkb:de_Sitter_group
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maximally symmetric spacetime with positive curvature
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gptkb:SO(8)
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gptkb:7-sphere_(S^7)
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gptkb:special_orthogonal_group_SO(3,1)
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gptkb:Minkowski_space
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