Abstract
A few years ago Fritz Gesztesy raised the issue of whether there was a composition rule for the Witten index analogous to that satisfied by Fredholm operators. In this note we prove a result in this direction and provide an application to Levinson’s theorem.
Original language | English |
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Pages (from-to) | 995-1007 |
Number of pages | 13 |
Journal | Pure and Applied Functional Analysis |
Volume | 9 |
Issue number | 4 |
Publication status | Published - 2024 |