Structure of essential spectrum and discrete spectra - Tashpulatov, Sa'dulla
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We consider five-electron systems for the Hubbard Model and investigate the structure of essential spectrum and discrete spectra of the system in a sextet, and four type quartet states and five type doublet states of the system for the d- dimensional integer valued lattice Zd. We proved the spectrum of the system in the sextet state is purely continuous and in the system five-electron bound states and five-electron anti bound states is absent. In the one- and two-dimensional cases, it is shown that the essential spectrum of the five-electron quartet states operator is the union of seven…mehr

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Produktbeschreibung
We consider five-electron systems for the Hubbard Model and investigate the structure of essential spectrum and discrete spectra of the system in a sextet, and four type quartet states and five type doublet states of the system for the d- dimensional integer valued lattice Zd. We proved the spectrum of the system in the sextet state is purely continuous and in the system five-electron bound states and five-electron anti bound states is absent. In the one- and two-dimensional cases, it is shown that the essential spectrum of the five-electron quartet states operator is the union of seven segments, and the discrete spectrum of the system consists of a no more than one eigenvalue lying the outside domain of the essential spectrum of this operator.
Autorenporträt
I was born on June 9, 1959 in the Republic of Uzbekistan in the Baysun district of the village of Machay in the Surkhandarya region in the family of a teacher. In 1966, I went to elementary school. I graduated from school in 1976 with silver medals. This year I entered the Physics and Mathematics Faculty of the Termez State Pedagogical Institute.