6 citations · 11 across the 2 of their papers we have counts for
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gr-qc2007★ 6 cited
Group velocity of gravitational waves in an expanding universe
Vladimír Balek, Vratko Polák
The group velocity of gravitational waves in a flat Friedman-Robertson-Walker universe is investigated. For plane waves with wavelength well inside the horizon, and a universe fill…
gr-qc2007★ 5 cited
Plane waves in a relativistic homogeneous and isotropic elastic continuum
Vratko Polák, Vladimír Balek
Propagation of gravitational and acoustic plane waves in a flat universe filled with a general relativistic, homogeneous and isotropic, spatially flat continuum is studied. The con…