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  • ...<br>[[Poincaré inequality]]<br> [[Hilbert–Poincaré series]]<br> [[Poincaré metric]]<br> [[Rotation number]]<br> [[Betti number|Coining term 'Betti number']] * [[Poincaré metric]]
    73 KB (10,374 words) - 11:55, 7 July 2017
  • ...3)}} are isomorphic. It is widely believed that the choice between the two metric signatures has no physical relevance, even though some objects related to { Writing the coordinates in column vectors and the [[Minkowski metric]] {{math|''η''}} as a square matrix
    97 KB (14,188 words) - 15:44, 20 July 2017
  • ...ffects by replacing special relativity's "flat" [[Minkowski Space]] with a metric that produces non-zero curvature. In general relativity, the principle of i
    51 KB (7,987 words) - 15:47, 20 July 2017