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Investigations of the Essential Spectrum of a Hamiltonian in Fock Space |
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PP: 395-412 |
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Author(s) |
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Tulkin H. Rasulov,
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Abstract |
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| In the present paper, we precisely describe the location and structure of the essential
spectrum of a Hamiltonian (model operator) H associated to a system describing
four particles in interaction, without conservation of the number of particles, in the
quasi-momentum representation. It is also established that the essential spectrum of H
consists of no more than seven bounded closed intervals. |
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