Oliver, GabrielVerdaguer Oms, Enric, 1950-2012-04-262012-04-2619890022-2488https://hdl.handle.net/2445/24564Some generalized soliton solutions of the cosmological EinsteinRosen type defined in the space-time region t2=z2 in terms of canonical coordinates are considered. Vacuum solutions are studied and interpreted as cosmological models. Fluid solutions are also considered and are seen to represent inhomogeneous cosmological models that become homogeneous at t?8. A subset of them evolve toward isotropic FriedmannRobertsonWalker metrics.4 p.application/pdfeng(c) American Institute of Physics, 1989Astrofísica relativistaSolitonsEquacions de camp d'EinsteinRelativistic astrophysicsSolitonsEinstein field equationsinfo:eu-repo/semantics/article79608info:eu-repo/semantics/openAccess