Study of their internal structure at various redshifts: mass and velocity anisotropy profiles, pseudo-phase space density profile, substructures. Mostly based on the CLASH-VLT (P.I.: P. Rosati) and GOGREEN (P.I.: M. Balogh) cluster spectroscopic surveys.

Coordinator of the Euclid work package on clusters of galaxies (level3) for the implementation of the algorithms for detection and characterization of galaxy clusters in the Euclid survey for cosmological studies.