In this note a representation formula for the scattering matrix of a pair of self-adjoint extensions of a non-densely defined symmetric operator with infinite deficiency indices is proved with the help of quasi boundary triples and their Weyl functions. This result is a generalization of a classical formula by V.A. Adamyan and B.S. Pavlov.
|Title of host publication
|Analysis as a Tool in Mathematical Physics
|Number of pages
|Published - 1 Jan 2020
|Operator Theory: Advances and Applications
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