What is it about?
In this paper the Ter-Martirosian--Skornyakov extension is discussed. We locate the bottom of the essential spectrum of that system and establish the finiteness of the discrete spectrum below the bottom.
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Why is it important?
The Ter-Martirosian--Skornyakov extension is one of the most important model in the field of the Schroedinger equations. This paper clarifies the structure of the spectrum of that system for the first time.
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This page is a summary of: Finiteness of the discrete spectrum in a three-body system with point interaction, Mathematica Slovaca, January 2017, De Gruyter,
DOI: 10.1515/ms-2017-0030.
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