\Omega_0 and \lambda_0 from galaxy and quasar clustering: cosmic virial   theorem and cosmological redshift-space distortion
  I discuss two cosmological tests to determine the cosmological density parameter \Omega_0 the cosmological constant \lambda_0, which make use of the anisotropy of the two-point correlation functions due to the peculiar velocity field and the cosmological redshift-space distortion. 
Yasushi Suto