TY - JOUR AU - Šilhavý, M. TI - On semiconvexity properties of rotationally invariant functions in two dimensions JO - Czechoslovak Mathematical Journal PY - 2004 SP - 559 EP - 571 VL - 54 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMJ_2004__54_3_a1/ LA - en ID - CMJ_2004__54_3_a1 ER -