First-order asymptotic perturbation theory for extensions of symmetric operators

General topics in linear spectral theory for PDEs (35P05) Perturbation theory of linear operators (47A55) Eigenvalue problems for linear operators (47A75)

Cites Work

Krein's resolvent formula for self-adjoint extensions of symmetric second-order elliptic differential operators
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Generalized boundary triples, II. Some applications of generalized boundary triples and form domain invariant Nevanlinna functions
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