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Automorphisms of spectral lattices of unbounded positive operators© 2014, Pleiades Publishing, Ltd. We introduce and study spectral order on unbounded operators

Automorphisms of spectral lattices of unbounded positive operators© 2014, Pleiades Publishing, Ltd. We introduce and study spectral order on unbounded operators

On the stability of the index of unbounded nonlocal operators in Sobolev spacesUnbounded operators corresponding to nonlocal elliptic problems on a bounded region G ⊂ ℝ 2

Necessary and Sufficient Conditions for Solvability of an Inverse Problem for Higher-Order Differential Operators expression coefficients for higher-order operators with separate boundary conditions from the spectral data

Inverse Spectral Problem for the Third-Order Differential EquationThis paper is concerned with the inverse spectral problem for the third-order differential equation

Solvability of degenerating hyperbolic differential equations with unbounded operator coefficients and with operator coefficients in a Banach space and establish sufficient conditions for the unique solvability

MODEL OF HYDROGEN ATOM QUANTUM MEASUREMENTS ON RIGGED HILBERT SPACES. The operators of observables of rather simple explicit form are converted into pseudo-differential operators

Counterexample to Barcilon’s Uniqueness Theorem for the Fourth-Order Inverse Spectral Problem in the inverse spectral theory for higher-order differential operators. The example is obtained by a finite

Existence of Solutions of Anisotropic Elliptic Equations with Variable Exponents in Unbounded Domains
equations of second order with divergent form and variable exponents. The corresponding elliptic operators

Spectral Properties of the Fourth Order Differential Operator with Integral ConditionsAbstract: We consider an ordinary fourth-order differential equation with a spectral parameter

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