On a conjectured property of the witten index and an application to levinson’s theorem
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Carey, Alan
Levitina, Galina
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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.
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Pure and Applied Functional Analysis
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