TY - JOUR AU - Janusz Matkowski AU - Marek Pycia TI - Convex-like inequality, homogeneity, subadditivity, and a characterization of $L^p$-norm JO - Annales Polonici Mathematici PY - 1994 SP - 221 EP - 230 VL - 60 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-60-3-221-230/ DO - 10.4064/ap-60-3-221-230 LA - en ID - 10_4064_ap_60_3_221_230 ER -