"mathematics." . . "Mathematics." . "mathematics" . . . . . . . . . . . . . . . . . . . . . "Electronic books"@en . . . "Perturbation theory for linear operators" . "Perturbation theory for linear operators"@en . . . . . . . . . . . . "Perturbation theory for linear operators : corr. pr. of the 2nd ed" . . . . . . . . . . . . . . . . . . . . . . . . . . . "Pertubation theory for linear operators" . . . . . . . . . . "Теория возмущений линейных операторов" . . . . . . . . . . . . . . . . . . . . . . . . . "Teoriâ vozmuŝenij linejnyh operatorov" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "PERTURBATION THEORY FOR LINEAR OPERATORS" . . . . . . . . . . "Perturbation Theory for Linear Operators"@en . "Perturbation Theory for Linear Operators" . "Perturbation Theory for Linear Operators"@it . . . . . . . . . . . . . . . . . "Teorii︠a︡ vozmushcheniĭ lineĭnykh operatorov" . . . . . . . . . . . . . . . . . . "Operatorentheorie." . . "Perturbációszámítás." . . "espace Hilbert." . . "Mathématiques." . . "Perturbation (Mathematics)" . . "Operatorska teorija Linearni operatorji." . . "Análisis funcional." . . "Análisis Funcional." . "Linearer Operator Störungstheorie." . . "perturbation." . . "Analiza Operatorska teorija." . . "Kwantummechanica. Gekwantiseerde velden." . . "Partial Differential Equations." . . "Functional equations." . . "Perturbációszámítás operátor." . . "KATO T." . . "Störungsrechnung (Mathematik)" . . "Störungstheorie Linearer Operator." . . "Perturbación (Matemáticas)" . . "Perturbación (Matematicas)" . "Calculus of Variations and Optimal Control; Optimization." . . "Operatori liniari." . . "Perturbação (Matemática)" . . "Mathematische fysica." . . "Ecuaciones Diferenciales Parciales." . . "Modèles économétriques." . . "Operátorelmélet." . . "Operator" . . "Operator." . "Maattheorie. Wiskundige integratie." . . "Operatory liniowe." . . . . "Operadores lineares." . . "Functional analysis." . . "opérations linéaires." . . "perturbation theory" . . "Operadors lineals." . . "Operadors lineals" . "opérateurs linéaires perturbation (mathématiques)" . . "Perturbation (Mathematik)" . . "Opérateurs, Théorie des." . . "Pertubation (mathématique)." . . "Hilbert space." . . "Storingsrekening." . . "Perturbation (mathématiques)." . . "perturbation (mathématiques)" . "Perturbation (Mathématiques)" . "Perturbation (mathématiques)" . "Störung <Math.>" . . "Operadores lineales." . . "Operadores lineales" . "Operadores Lineales." . "Operadores (Analise Funcional)" . . "Operadores (analise funcional)" . "Opérateurs linéaires." . . "opérateurs linéaires." . "Operateurs lineaires." . "Méthodes statistiques." . . "Differential equations, Partial." . . "Operatori lineari." . . "Linearer Operator." . . "Linearer Operator" . "Perturbazione (Matematica)" . . "Perturbacja (matematyka)." . . "Linear operators." . . "Linear operators" . "linear operators" . "Lineaire operatoren." . . "Mathematical optimization." . . "théorème stabilité." . . "théorème stabilité" . "opérateur linéaire." . . "Störungstheorie." . . "Störungstheorie" . "Pertorbació (Matemàtica)" . . "Lineáris operátor." . . "Perturbaţii (Matematică)" . . "Perturbación, Teoria de la." . .