Nejat Tevfik YilmazYilmaz, Nejat Tevfik2025-10-0620151475-751610.1088/1475-7516/2015/09/0622-s2.0-84947584574http://dx.doi.org/10.1088/1475-7516/2015/09/062https://gcris.yasar.edu.tr/handle/123456789/6357https://doi.org/10.1088/1475-7516/2015/09/062We construct the complete set of metric-configuration solutions of the ghost-free massive bigravity for the scenario in which the g-metric is the Friedmann-Lemaitre-Robertson-Walker (FLRW) one and the interaction Lagrangian between the two metrics contributes an effective ideal fluid energy-momentum tensor to the g-metric equations. This set corresponds to the exact background cosmological solution space of the theory.Englishinfo:eu-repo/semantics/openAccessmodified gravity, dark energy theory, gravity, dark matter theoryModified GravityDark Energy TheoryDark Matter TheoryGravityArticle