TY - JOUR AU - V. A. Ivanov TI - On properties of moduli of continuity for functions on a sphere JO - Differencialʹnye uravneniâ PY - 1987 SP - 481 EP - 487 VL - 23 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1987_23_3_a14/ LA - ru ID - DE_1987_23_3_a14 ER -