TY - JOUR AU - O. A. Koroleva TI - On Convergence of Riesz Means of the Expansions in Eigen and Associated Functions of Integral Operator with Kernel Having Jumps on Broken Lines JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2013 SP - 63 EP - 67 VL - 13 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2013_13_1_a15/ LA - ru ID - ISU_2013_13_1_a15 ER -