Title: Singuli͡a︡rnye bilineĭnye formy v teorii vozmushcheniĭ samosopri͡a︡zhennykh operatorov
First published: 1993
Subjects: Forms, Quadratic, Mathematical physics, Selfadjoint operators, Perturbation (Mathematics), Quadratic Forms
LC classification: QC20.7.P47 K68 1993