TY - JOUR AU - S. I. Mitrokhin TI - Multipoint differential operators: ``splitting'' of the multiple in main eigenvalues JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2017 SP - 5 EP - 18 VL - 17 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2017_17_1_a0/ LA - ru ID - ISU_2017_17_1_a0 ER -