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Weyl–Titchmarsh Function of an Abstract Boundary Value Problem, Operator Colligations, and Linear Systems with Boundary Control
Springer Verlag | 2007|Keywords: Primary 47A48, 47B25, 47F05 -
Unitary Equivalence of Proper Extensions of a Symmetric Operator and the Weyl Function
Springer Verlag | 2013|Keywords: 47B25 -
Unboundedness of Adjacency Matrices of Locally Finite Graphs
Springer Verlag | 2010|Keywords: 47B25 -
Unbounded Jacobi Matrices with a Few Gaps in the Essential Spectrum: Constructive Examples
Free accessSpringer Verlag | 2011|Keywords: 47B25 -
Unbounded graph-Laplacians in energy space, and their extensions
Springer Verlag | 2011|Keywords: 47B25 -
Two-Interval Sturm–Liouville Operators in Direct Sum Spaces with Inner Product Multiples
Springer Verlag | 2007|Keywords: Secondary 47B25 -
Two-Interval Even Order Differential Operators in Direct Sum Spaces
Springer Verlag | 2011|Keywords: Secondary: 47B25 -
Two-Dimensional Trace-Normed Canonical Systems of Differential Equations and Selfadjoint Interface Conditions
Springer Verlag | 2005|Keywords: Primary 47B25 -
Triplets of Closely Embedded Dirichlet Type Spaces on the Unit Polydisc
Springer Verlag | 2012|Keywords: 47B25 -
Threshold Between Short and Long-range Potentials for Non-local Schrödinger Operators
Springer Verlag | 2020|Keywords: 47B25 -
The von Neumann Problem for Nonnegative Symmetric Operators
Springer Verlag | 2005|Keywords: 47B25
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