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Ehlers-Geren-Sachs theorem
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English
Ehlers–Geren–Sachs theorem
Etymology
Published in 1968 by Jürgen Ehlers, P. Geren and Rainer K. Sachs.
Proper noun
1
A theorem showing that if, in a given universe, all freely falling observers measure the cosmic background radiation to have exactly the same properties in all directions (isotropic), then that universe is an isotropic and homogeneous FLRW spacetime.
en eponyms