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Localizations at infinity and essential spectrum of quantum Hamiltonians: I. General theory

We isolate a large class of self-adjoint operators H whose essential spectrum is determined by their behavior at large x and we give a canonical representation of their essential spectrum in terms of spectra of limits at infinity of translations of H. The configuration space is an arbitrary abelian locally compact not compact group.

preprint2012arXivOpen access
Vladimir GeorgescuAndrei Iftimovici
math-phmath.MPmath.SP
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Vladimir GeorgescuAndrei Iftimovici

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