Mathematica Notebooks for

Cosmological Perturbations in Big Bang/Big Crunch Cosmology

A. Tolley, N. Turok and P. Steinhardt

NB1: 4d Perturbation Relations (final relations in Section V)
NB2: Geometry near t=0 (Background metric in Appendix 3)
NB 3: Solution for chi, f1, f2 (Section VI.F)
NB 4: Final Result (Psi(t) in Section VI.F)