University of Rome "La Sapienza", Dipartimento di Fisica, Corso di Fisica Teorico (Ruffini)
Development of tools for studying the Lifshitz perturbation analysis of Friedmann-Robertson-Walker cosmological models. Lie and variational derivatives (shared with ICM2), gauge transformations, linearized Einstein equations about FRW background, harmonic analysis, connection with representation theory and Lie derivatives, Jean's length.