TY - DATA AU - Cekanovskii, E. R., TI - Five papers on functional analysis T2 - American Mathematical Society Translations: Series 2, SN - 9781470432737 (online) KW - Functional analysis N1 - Includes bibliographical references; Fundamental concepts of the spectral theory of Hermitian operators /; Spectral theory of linear operators /; On the Friedrichs model in the theory of perturbations of a continuous spectrum /; The existence of spectral functions of generalized second-order differential systems with a boundary condition at the singular end /; Generalized extensions of nonsymmetric operators; A. I. Plesner; A. I. and Rohlin Plesner, V. A.; L. D. Faddeev; I. S. Kac; E. R. Cekanovskii UR - http://www.ams.org/trans2/062 ER -