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19992026
most citedKrein's Resolvent Formula for Self-Adjoint Extensions of Symmetric Second Order Elliptic Differential Operators

66 citations · 458 across the 52 of their papers we have counts for

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Showing 2007Show all

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math-ph2007

Self-adjoint, globally defined Hamiltonian operators for systems with boundaries

Nuno Costa Dias, Andrea Posilicano, Joao Nuno Prata

For a general self-adjoint Hamiltonian operator on the Hilbert space $L^2(\RE^d)$, we determine the set of all self-adjoint Hamiltonians on $L^2(\RE^d)$ that dynamically…

math-ph2007★ 6 cited

Self-adjoint Extensions of Restrictions

Andrea Posilicano

We provide a simple recipe for obtaining all self-adjoint extensions, together with their resolvent, of the symmetric operator obtained by restricting the self-adjoint operator…