TY - JOUR AU - V. N. Karpushkin TI - Estimates of sums of zero multiplicities for eigenfunctions of the Laplace--Beltrami operator JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2005 SP - 85 EP - 90 VL - 11 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2005_11_5_a6/ LA - ru ID - FPM_2005_11_5_a6 ER -