2007/02/28 by Masao Iihoshi, M. Iihoshi, Sergei V. Ketov +3 · 2 citations
Mathematics · Physics and Astronomy · #Advanced Differential Geometry Research #Geometric Analysis and Curvature Flows #Noncommutative and Quantum Gravity Theories #gr-qc #hep-th
paper · pdf · doi:10.1143/ptp.118.475
published as Prog.Theor.Phys.118:475-489,2007 · 19 pages; LaTeX; no figures; misprints corrected, a few references and short notes added
arxiv created 2007/07/14 · openalex publication_date 2007/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We find a new family of non-separable coordinate transformations bringing the FRW metrics into the manifestly conformally flat form. Our results are simple and complete, while our derivation is quite explicit. We also calculate all the FRW curvatures, including the Weyl tensor.