"We present and analyze exact gyraton and nonexpanding gravitational wave solutions of algebraic type II on backgrounds which are a direct-product of two 2-spaces of constant curvature, or more general type D spacetimes. This family of electro-vacuum background spacetimes contains the Nariai, anti-Nariai and Pleba\u0144ski-Hacyan universes, conformally flat Bertotti-Robinson and Minkowski spaces. The gyraton solutions are given in a simple Kundt metric form and belong to the class of spacetimes with constant scalar invariants (CSI) of the curvature tensor. The Einstein equations reduce to a set of linear equations on the transverse 2-space which can be explicitly solved using the Green functions." . . "138421" . "World Scientific Publishing" . "11320" . . . "Singapore" . "curvature invariants; generalized pp-waves; gravitational waves; Kundt's class; exact solutions"@en . "Pa\u0159\u00ED\u017E, Francie" . . "3"^^ . "2009-07-12+02:00"^^ . "Gravitational field of gyratons propagating on backgrounds formed by direct-product spacetimes"@en . "Gravitational field of gyratons propagating on backgrounds formed by direct-product spacetimes"@en . . . . "http://www.worldscientific.com/worldscibooks/10.1142/8316#t=toc" . "We present and analyze exact gyraton and nonexpanding gravitational wave solutions of algebraic type II on backgrounds which are a direct-product of two 2-spaces of constant curvature, or more general type D spacetimes. This family of electro-vacuum background spacetimes contains the Nariai, anti-Nariai and Pleba\u0144ski-Hacyan universes, conformally flat Bertotti-Robinson and Minkowski spaces. The gyraton solutions are given in a simple Kundt metric form and belong to the class of spacetimes with constant scalar invariants (CSI) of the curvature tensor. The Einstein equations reduce to a set of linear equations on the transverse 2-space which can be explicitly solved using the Green functions."@en . . "Gravitational field of gyratons propagating on backgrounds formed by direct-product spacetimes" . . "Gravitational field of gyratons propagating on backgrounds formed by direct-product spacetimes" . "RIV/00216208:11320/12:10132784!RIV13-GA0-11320___" . . . "The Twelfth Marcel Grossmann Meeting : On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories" . . . . "[736E4A3812CC]" . "10.1142/9789814374552_0356" . . . "RIV/00216208:11320/12:10132784" . . . "P(GD205/09/H033), P(LC06014), S" . "1"^^ . "Kadlecov\u00E1, Hedvika" . . "1"^^ . . "978-981-4374-51-4" . .