Ibáñez i Insa, JordiVerdaguer Oms, Enric, 1950-2010-05-062010-05-0619850556-2821https://hdl.handle.net/2445/12402We discuss a multisoliton solution to Einsteins equations in vacuum. The solution is interpreted as many gravitational solitons propagating and colliding on a homogeneous cosmological background. Following a previous letter, we characterize the solitons by their localizability and by their peculiar properties under collisions. Furthermore, we define an associated frame-dependent velocity field which illustrates the solitonic character of these gravitational solitons in the classical sense.7 p.application/pdfeng(c) The American Physical Society, 1985Relativitat general (Física)Equacions d'EinsteinSolucions numèriquesGeneral relativity (Physics)Einstein field equationsNumerical solutionsinfo:eu-repo/semantics/article79590info:eu-repo/semantics/openAccess