# [Introduction to]

Cosmological Models: 4 Lectures

### by bob jantzen [January 1984]

University of Rome "La Sapienza", Dipartimento di Fisica, Corso di Fisica
Teorico (Ruffini)

This is the origin of the later Introduction
to Cosmological Models notes, from which these were cannibalized to fill
out Part I.

- Part I: orthogonal coordinates on flat or constant curvature
manifolds with metric, FRW geometry, simplest spacetime splittings,
Gaussian normal coords, intrinsic and extrinsic curvature (January
1988)

(icm1.pdf: 37 pages, 1.163 MEG)

Pages marked page 35, 36, 37, 38, [40] were inserted in Part II at the end,
together with the Lie derivative pages from the
Lifshitz perturbation analysis:

- Part II: Symmetries and Lie groups (March 1988)

(icm2.pdf: 29 pages, 909K)

The original introduction pages contain the Symmetry Breaking in Cosmology
diagram from which later notes developed: