2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/81925Superconductivity, superfluidity, condensation, cluster formation, etc. are phenomena that might occur in many-particle systems. These are due to residual interactions between the particles. To explain these phenomena consistently in a microscopic approach, at some point, one needs to solve few-body equations that are modified because of the Pauli principle and the interactions of the many particles around.invited plenary talk, European Few-Body Conference XVIII in Bled, 6 pages, 4 figuresNuclear Theorytext