A new symmetry of the spatially flat Einstein-Friedmann equations
Abstract
We report a new symmetry of the Einstein-Friedmann equations for spatially flat Friedmann- Lema\itre-Robertson-Walker universes. We discuss its application to barotropic perfect fluids and its use as a solution-generating technique for scalar field universes.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.