Invited Plenary Talk. Escuela de Matemáticas de América Latina y el Caribe, Xalapa, México, 25 de junio al 5 de julio, 2012. Title: Topological Effects in Quantum Mechanics and High-Velocity Estimates.
Invited Plenary Talk. Spectral Theory and Differential Equations. In Honor
of Vladimir A. Marchenko's 90 th Birthday, Kharkov, Ukraine, August 20 -
24, 2012. TItle: Topological Effects in Quantum Mechanics and High-VelocityEstimates.
Plenary Talk. Spectral Theory and Differential Operators, Graz, Austria,
August 27 - 31, 2012. Title: High- and Low- Energy Analysis and Levinson's
Theorem for the Selfadjoint Matrix Schrödinger Operator on the Half-Line.
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