{"paper":{"title":"Multidimensional Cosmology with $m$-Component Perfect Fluid","license":"","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"V. D. Ivashchuk, V. N. Melnikov","submitted_at":"1994-03-31T15:28:05Z","abstract_excerpt":"A cosmological model describing the evolution of $n$ Einstein spaces $(n>1)$ with $m$-component perfect-fluid matter is considered. When all spaces are Ricci-flat and for any $\\alpha$-th component the pressures in all spaces are proportional to the density: $p_{i}^{(\\alpha)} = (1- h_{i}^{(\\alpha)}) \\rho^{(\\alpha)}$, $h_{i}^{(\\alpha)}$ = const, the Einstein and Wheeler-DeWitt equations are integrated in the cases: i) $m=1$, for all $h_{i}^{(\\alpha)}$; ii) $m > 1$, for some special sets of $h_{i}^{(\\alpha)}$. For $m=1$ the quantum wormhole solutions are also obtained. \\\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/9403064","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}