Lagrangian description of the fluid flow with vorticity in the relativistic cosmology
arXiv:astro-ph/9904005 · doi:10.1103/PhysRevD.59.123515
Abstract
We develop the Lagrangian perturbation theory in the general relativistic cosmology, which enables us to take into account the vortical effect of the dust matter. Under the Lagrangian representation of the fluid flow, the propagation equation for the vorticity as well as the density is exactly solved. Based on this, the coupling between the density and vorticity is clarified in a non-perturbative way. The relativistic correspondence to the Lagrangian perturbation theory in the Newtonian cosmology is also emphasized.
14 pages (RevTeX); accepted for publication in Phys. Rev. D
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