Titlebook: Operator Theory and Boundary Eigenvalue Problems; International Worksh I. Gohberg,H. Langer Conference proceedings 1995 Springer Basel AG 1

patella

,On Some Aspects of V.E. Katsnelson’s Investigations on Interrelations Between Left and Right Blaschby a linear fractional transformation of matrices which is generated by some ..—inner function, where .. :=diag (.., —..),and where the Schur class ..(.) is used as the set of parameters (see, e.g., [BGR], [Dy] and [DFK]). Conversely, there arises the following inverse problem: Given a ..—inner func

沉思的鱼

On Some Development of the S. Krein Pencil Theory, .: .(λ) = λ.. + λ. + . (1)is called a selfadjoint operator pencil. The point λ ∈ . is said to be a regular point of . (λ ∈ .(.)) if 0 ∈ .(.(λ)). Analogously λ ∈ . is a point of the spectrum of . (an eigenvalue of ., respectively) if 0 ∈ σ(.(λ)) (0 ∈ σ.(.(λ)), respectively. The point infinity is sai

Cervical-Spine

旧石器

On The Spectral on the Theory of an Elliptic Boundary Value Problem Involving an Indefinite Weight,ly, the spectral theory for a pencil of the form . — λ. acting in a Hilbert space ..(Ω), where Ω ⊂ ℝ. is a bounded region and . ≥ 2. Here . is a non-self adjoint operator and . is a multiplication operator in ..(Ω) induced by a real-valued weight function which assumes both positive and negative val

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为现场

Analysis of the Radiation Loss: Asymptotics Beyond all Orders,. (1.1) arises. Here 0 < ∈ ≪ 1 is a parameter and λ is an eigenvalue. One boundary condition associated with equation (1.1) is . (1.2) for some . > 0. The other boundary condition is imposed at ϰ = +∞. Several authors have computed a desired quantity Im.(0;λ), which is called the radiation loss, for

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Selfadjoint Extensions of a Closed Linear Relation of Defect One in a Krein Space, a Krein space (., [·, ·]). These extensions are described by their resolvents, that is, M. G. Krein’s formula for the resolvents of the extensions of a symmetric densely defined operator with defect (1,1) is generalized to the situation considered here. The main difficulties which arise with this g

thyroid-hormone

你正派

Nonlinear Equations and Inverse Spectral Problems on the Axis,y problem on the axis (—∞ < ϰ < ∞). In the papers [4]–[6] the transition from the method of the scattering problem to the method of the inverse spectral problem was performed. It permitted to investigate some nonlinear equations on the half axis (0 ≤ ∞ < ∞).

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