spaces of Clifford–Klein

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A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England

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spaces of Clifford–Klein

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work of Clifford

In William Kingdon Clifford
” He showed that spaces of constant curvature could have several different topological structures.
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