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arxiv: 1709.06989 · v1 · pith:INOS5X54new · submitted 2017-09-20 · 🧮 math-ph · math.MP· math.SP

Embedded eigenvalues of generalized Schr\"odinger operators

classification 🧮 math-ph math.MPmath.SP
keywords eigenvaluesembeddedoperatorsconnectionconstantcounterexamplescurvaturedecay
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We provide examples of operators $T(D)+V$ with decaying potentials that have embedded eigenvalues. The decay of the potential depends on the curvature of the Fermi surfaces of constant kinetic energy $T$. We make the connection to counterexamples in Fourier restriction theory.

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