"mathematical tables." . . "Espais de Hilbert" . . "Teoria spettrale (Matematica)" . . "Teoria spektralna (matematyka)." . . "transformation." . . "Spectral theory (Mathematics)." . . "Spectral theory (Mathematics)" . "Algèbres d'opérateurs." . . "Spectre (Mathématiques)" . . "Hilbert, Espacio de." . . "Sucesiones espectrales (Matemáticas)" . . "Analisi funzionale." . . "Spaţii Hilbert." . . "Hilbert-tér." . . "mathematics." . . "Àlgebres d'operadors" . . "Fourier analysis." . . "Hilbert, Espace de." . . "Teoria espectral (Matemàtica)" . . "Théorie spectrale (mathématiques)" . . "Théorie spectrale (mathématiques)." . "Hyperespace." . . "Operatortheorie." . . "Geometria." . . "Fourier transformations." . . "Espectro (Matemáticas)" . . "Spectraaltheorie." . . "Spektralmaß." . . "Operadores lineales." . . "Przestrzenie Hilberta." . . . . "Spektrálelmélet." . . "Spektraltheorie." . . "Hilbert space." . . "Espacio de Hilbert." . . "Operatoren." . . "Hilbertruimten." . . "tables." . . "American Mathematical Society," . . "Espaces à produit scalaire." . . "Hilbert-Raum." . . "Spazio di Hilbert." . . "Operator." . . . . . . . "Introduction to hilbert space and the theory of spectral multiplicity 2d ed" . . . . . "Introduction to Hilbert Space" . . . . . . . "Introduction to Hilbert space : and the theory of spectral multiplicity" . "Introduction to Hilbert space : and the theory of spectral multiplicity"@en . . . . . . "Spectral multiplicity"@en . "Spectral multiplicity" . . . . . . . . . . . . . . . . . . . "Hilbert space"@en . "Hilbert space" . . "Theory of spectral multiplicity"@en . . . . "Introduction to Hilbert space : the theory of spectral multiplicity" . . . . . . . . . . . . . . . . . . . . "Hilbert space and the theory of spectral multiplicity" . . . . . . . "Introduction to hilbert space and the theory of spectral multiplicity" . . "Introduction to Hilbert space and the theory of spectral multiplicity" . "Introduction to Hilbert space and the theory of spectral multiplicity"@en . . . . . . . . . . . . "Introduction to Hilbert Space and the theory of spectral multiplicity" . . . . . . "Introduction to Hilbert Space; and the theory of spectral multiplicity" . . . . . . . . . . . . . . . . . . . . . . . . . "Hilbert, Espaces de." . . "funkcionalna analiza." . .