TY - JOUR AU - K. А. Sintsova TI - Inverse theorem for approximation on subsets of a domain with cups JO - Zapiski Nauchnykh Seminarov POMI PY - 2023 SP - 204 EP - 220 VL - 527 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2023_527_a8/ LA - ru ID - ZNSL_2023_527_a8 ER -