Notes on Harmonics 1986

by bob jantzen  [May June 1986]

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

An attempt to make the previous notes on the Lifshitz perturbation analysis of Friedmann-Robertson-Walker cosmological models more digestible by first discussing representations of groups and the role they play in this process.