On freedman equation and the shape of our universe
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Abstract
In the nineteen twenties, the famous Russian mathematician Alexander Freedman formulated an equation which determines the shape and fate of our universe. Freedman derived his equation in general relativity. The equation reveals that the geometry of the universe may be flat, closed or open. The Euclidean, hyperbolic and spherical geometries describe the flat, open and closed universes respectively. Both NASA’s WMAP and ESA’s PLANCK mission show the cosmological curvature parameter, ΩK, to be 0.000±0.005, consistent with a flat universe. Many observational cosmological probes revealed that the universe is flat obeying the classical Euclidean geometry. But till this day, there is no mathematical formulation/proof for the geometry of our universe. In this work, the attempts to establish that the shape of our universe is flat.
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Copyright (c) 2020 Kalimuthu S.
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Cornish NJ, Weeks RJ (2000) Measuring the shape of the Universe. Link: https://bit.ly/2ZyFbBI
Luminet JP (2006) The Shape and Topology of the Universe. 21. Link: https://bit.ly/2CD8xG9
Aurich R, Lustig S, Steiner F, Then H (2004) Can one hear the shape of the Universe? Phys Rev Lett 4. Link: https://bit.ly/394Ok8a
Cornish N, Spergel D, Starkman G (1998) Can COBE see the shape of the universe?. Phys Rev 16. Link: https://bit.ly/3fIV5PS
Gomero GI (2002) Can We See the Shape of the Universe?. Int J Mod Phys 6. Link: https://bit.ly/3h56KbO
Gomero GI, Reboucas MJ, Teixeira AFF (2000) Signature for the Shape of the Universe. Int J Mod Phys 11. Link: https://bit.ly/3h7grGH
Gomero GI (2003) Determining the shape of the Universe using discrete sources. Class Quant Grav 11. Link: https://bit.ly/3eDUaif
Bayin SS (2013) Is the Universe Flat?. Link: https://bit.ly/3fDotH4