The theory of the expanding Universe as originated by A. A. Fridman
Ya.B. Zel’dovich All-Russian Scientific Research Institute of Experimental Physics — Federal Nuclear Centre, prosp. Mira 37, Sarov, Nizhny Novgorod region, 607190, Russian Federation
1. History of Fridman's discovery of the nonstationary nature of the Universe 475 2. The past and the future in Fridman's theory 476 3. Elementary derivation of the law of expansion 477 4. The case of an arbitrary equation of state 479 5. The structure of the universe as a whole 480 6. The density of matter 481 7. Observational investigation of the structure. The horizon 481 8. Neutrinos and electromagnetic radiation 483 9. The metric of the expanding universe 484 10. Curvature of space, superlight speed, and the Milne model 484 11. The red shift, or aging of quanta? 485 12. The red shift. Exact formula and physical interpretation 486 13. Electric charge in the universe 488 14. Asymmetry with respect to charge 488 15. The mass of the closed world 489 16. Statement of the problem of the initial state 489 17. Types of initial conditions 490 18. Nonuniformity of density and accidental motions 491 19. Gravitational instability 492 20. Conclusion 494
PACS:95.30.Cq, 95.30.Sf, 98.62.Py (all) DOI:10.1070/PU1964v006n04ABEH003584 URL: https://ufn.ru/en/articles/1964/4/c/ Citation: Zel’dovich Ya B "The theory of the expanding Universe as originated by A. A. Fridman" Sov. Phys. Usp.6 475–494 (1964)
@article{Zel’dovich:1964,author = {Ya. B. Zel’dovich},title = {The theory of the expanding Universe as originated by A. A. Fridman},publisher = {Physics-Uspekhi},year = {1964},journal = {Phys. Usp.},volume = {6},number = {4},pages = {475-494},url = {https://ufn.ru/en/articles/1964/4/c/},doi = {10.1070/PU1964v006n04ABEH003584}}