flat manifold
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manifold
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space group
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vector bundle connection
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mathematics
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International Standard Book Number
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cube
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digital object identifier
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International Standard Serial Number
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doughnut
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three-dimensional space
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torus
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Möbius strip
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Euclidean space
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tensor
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Q118398
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vector field
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Klein bottle
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geodesic curve
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Lie group
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compact space
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