In Friedmann-Lemaître-Robertson-Walker cosmology, it is sometimes possible to compute analytically lookback time, age of the universe, and luminosity distance versus redshift, expressing them in terms of a finite number of elementary functions. We classify these situations using the Chebyshev theorem of integration and providing examples.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9232452 | PMC |
| http://dx.doi.org/10.1140/epjc/s10052-022-10519-2 | DOI Listing |
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