TY - JOUR AU - V. A. Solonnikov AU - E. V. Frolova TI - A~problem with the third boundary condition for the Laplace equation in a~plane angle and its applications to parabolic problems JO - Algebra i analiz PY - 1990 SP - 213 EP - 241 VL - 2 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_1990_2_4_a7/ LA - ru ID - AA_1990_2_4_a7 ER -