KnowraAlexander FriedmannLinked fromLinked fromThe 11 pages that link to Alexander Friedmann, each with the reason it gives.All 11Related 11Cosmological constantRelated: His work showed that cosmology did not require Einstein’s static balance.Big BangRelated: His solutions showed that general relativity permits a changing universe rather than requiring a static one.CosmologyRelated: His solutions showed that general relativity allowed a changing universe.Friedmann equationsRelated: His 1922 and 1924 papers established the equations’ original solutions.George GamowRelated: Friedmann’s cosmological work shaped the intellectual setting in which Gamow developed his hot-universe ideas.Hubble flowRelated: His solutions established that general relativity permits a changing cosmic scale.Big CrunchRelated: His equations made expanding and contracting universes mathematically possible.Flatness problemRelated: His equations made the evolution of spatial curvature part of modern cosmology.Cyclic modelRelated: His relativistic models established early mathematical possibilities for non-static cosmic histories.Expansion of the UniverseRelated: His solutions showed that general relativity permits an evolving universe.Timeline of cosmological theoriesRelated: His solutions showed that general relativity need not describe a static universe.