A simple proof of the real Riesz–Thorin interpolation theorem for operators of strong types (p0, q0) and (∞, ∞) in the lower triangle, that is, if 0 < p0 ≤ q0 < ∞ with the best estimate of the norms is presented.
Validerad;2023;Nivå 2;2023-04-19 (hanlid);
Funder: Poznań University of Technology (0213/S/GR/2154)