TY - JOUR AU - Lech Maligranda TI - A simple proof of the real Riesz–Thorin interpolation theorem in the lower triangle JO - Colloquium Mathematicum PY - 2023 SP - 99 EP - 103 VL - 172 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm8942-10-2022/ DO - 10.4064/cm8942-10-2022 LA - en ID - 10_4064_cm8942_10_2022 ER -