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Generalized boundary triples, II. Some applications of generalized boundary triples and form domain invariant Nevanlinna functions
(Wiley, 2022-05-12)
- article
The paper is a continuation of Part I and contains several further results on generalized boundary triples, the corresponding Weyl functions, and applications of this technique to ordinary and partial differential operators. ...
Boundary relations and their Weyl families
(Vaasan yliopisto, 2004)
- workingPaper
On Kreǐn's extension theory of non-negative operators
(Vaasan yliopisto, 2002)
- workingPaper
The famous M.G. Kreın’s extension theory of nonnegative operators is being presented in elementary terms, building on the completion of nonnegative operator blocks. The present treatment includes the refinements to the ...