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Besides the well known "interesting" theorem, stating that every natural number - not being any sum of two identical natural numbers - is followed by a successor which is such a sum (along with analogous theorems about a sum of more than two identical natural numbers, e.g. the theorem stating that every natural number not being any sum of three identical natural numbers - is followed by a successor which is either such a sum or followed by a successor which is such a sum). 185.46.78.64 ( talk) 20:28, 7 May 2019 (UTC)
Several (usually) reliable sources have asserted an isomorphism between the Möbius group and the Lorentz group: they both have six real parameters as Lie groups and they both contain copies of SO(3). But there are parabolic transformations in the Mobius group. The Galilean transformations are parabolic on space-time, but they are not included in the Lorentz group. An editor has exposed the null rotations which should be in the Lorentz group if indeed the isomorphism held with the Mobius group. Such null rotations fail to exist as seen in coverage of Lorentz transformation. Short of a WP:reliable source calling out the absurd null rotations, is there a way to halt the perpetuation of the harmful identification of the Riemann sphere with the celestial sphere ? Details of some findings are listed at Talk: Lorentz group#Null rotations ?. — Rgdboer ( talk) 21:35, 7 May 2019 (UTC)
Mathematics desk | ||
---|---|---|
< May 6 | << Apr | May | Jun >> | May 8 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
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The page you are currently viewing is a transcluded archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Besides the well known "interesting" theorem, stating that every natural number - not being any sum of two identical natural numbers - is followed by a successor which is such a sum (along with analogous theorems about a sum of more than two identical natural numbers, e.g. the theorem stating that every natural number not being any sum of three identical natural numbers - is followed by a successor which is either such a sum or followed by a successor which is such a sum). 185.46.78.64 ( talk) 20:28, 7 May 2019 (UTC)
Several (usually) reliable sources have asserted an isomorphism between the Möbius group and the Lorentz group: they both have six real parameters as Lie groups and they both contain copies of SO(3). But there are parabolic transformations in the Mobius group. The Galilean transformations are parabolic on space-time, but they are not included in the Lorentz group. An editor has exposed the null rotations which should be in the Lorentz group if indeed the isomorphism held with the Mobius group. Such null rotations fail to exist as seen in coverage of Lorentz transformation. Short of a WP:reliable source calling out the absurd null rotations, is there a way to halt the perpetuation of the harmful identification of the Riemann sphere with the celestial sphere ? Details of some findings are listed at Talk: Lorentz group#Null rotations ?. — Rgdboer ( talk) 21:35, 7 May 2019 (UTC)