TY - JOUR AU - A. I. Karol TI - Singular values of compact pseudodifferential operators of variable order with nonsmooth symbol JO - Zapiski Nauchnykh Seminarov POMI PY - 2022 SP - 67 EP - 104 VL - 519 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_2022_519_a3/ LA - ru ID - ZNSL_2022_519_a3 ER -