Nikolaos Tetradis

The non-zero components of the effective vertices γ areγ 121 (k, k 1 , k 2 ) = ˜α(k 1, k 2 )δ D (k + k 1 + k 2 ) = γ 112 (k, k 2 , k 1 )2γ 222 (k, k 1 , k 2 ) = ˜β(k 1 , k 2 ) δ D (k + k 1 + k 2 )γ 343 (k, k 3 , k 4 ) = ˜α(k 3, k 4 )δ D (k + k 3 + k 4 ) = γ 334 (k, k 4 , k 3 )2γ 444 (k, k 3 , k 4 ) = ˜β(k 3 , k 4 ) δ D (k + k 3 + k 4 ).The Ω-matrix, that defines the linear evolution, is⎛1 −1 0 0− 3 2 Ω CDM(2β 2 + 1) 2 − β ¯φ ′ + H′H − 3 2 Ω BM 0Ω(η) =0 0 1 −1⎜⎝− 3 2 Ω CDM 0 − 3 2 Ω BM 2 + H′H⎞.⎟⎠N. Tetradis University of AthensThe inhomogeneity of the Universe and the cosmological model