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||21|
|Publication status||Published - 1 Jan 2020|
|Name||Operator Theory: Advances and Applications|
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