TY - JOUR AU - M. V. Suchkov TI - The localization principle for the Laplace operator with piecewise constant coefficients on the surface of discontinuity of coefficients JO - Differencialʹnye uravneniâ PY - 1980 SP - 2050 EP - 2061 VL - 16 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1980_16_11_a15/ LA - ru ID - DE_1980_16_11_a15 ER -