%0 Journal Article %A V. A. Sadovnichii %A Z. Yu. Fazullin %T A Formula for the First Regularized Trace of a Perturbed Laplace--Beltrami Operator %J Differencialʹnye uravneniâ %D 2001 %P 402-409 %V 37 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_3_a11/ %G ru %F DE_2001_37_3_a11