Derives explicit formula for wave operators on discrete half-line Schrödinger operators, shows they are order-zero pseudo-differential operators, and gives topological interpretation of Levinson's theorem.
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Schroedinger wave operators on the discrete half-line
Derives explicit formula for wave operators on discrete half-line Schrödinger operators, shows they are order-zero pseudo-differential operators, and gives topological interpretation of Levinson's theorem.