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Abstract
The concept of quasi boundary triples and Weyl functions from extension theory of symmetric operators in Hilbert spaces is developed further and spectral estimates for resolvent differences of two self-adjoint extensions in terms of general operator ideals are proved. The abstract results are applied to self-adjoint realizations of second order elliptic differential operators on bounded and exterior domains, and partial differential operators with δ-potentials supported on hypersurfaces are studied.
Original language | English |
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Pages (from-to) | 1-37 |
Number of pages | 37 |
Journal | Integral Equations and Operator Theory |
Volume | 77 |
Issue number | 1 |
Early online date | 1 Jul 2013 |
DOIs | |
Publication status | Published - Sept 2013 |
Keywords
- elliptic operator
- self-adjoint extension
- operator ideal
- delta-potential
- quasi boundary triple
- Weyl function
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Dive into the research topics of 'Spectral estimates for resolvent differences of self-adjoint elliptic operators'. Together they form a unique fingerprint.Projects
- 1 Finished
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Spectral Theory of Block Operator Matrices
Langer, M. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/09/07 → 30/11/09
Project: Research