TY - JOUR AU - T. G. Ergashev TI - Double- and simple-layer potentials for a three-dimensional elliptic equation with a singular coefficient and their applications JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2021 SP - 81 EP - 96 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2021_1_a5/ LA - ru ID - IVM_2021_1_a5 ER -