2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69828This is an expository note on non-amenabilty of the Banach algebra B(\ell_p) for p=1,2. These were proved respectively by Connes (p=2) and Read (p=1) via very different methods. We give a single proof which reproves both.9 pagesFunctional Analysis46H20; 46B07text