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Spectrum of Two-Magnon non-Heisenberg Ferromagnetic Model of Arbitrary Spin with Impurity
We consider a two-magnon system in the isotropic non-Heisenberg ferromagnetic model of an arbitrary spin s on a n-dimensional lattice Zⁿ. We establish that the essential spectrum of the system consists of the union of at most four intervals. We obtain lower and upper estimates for the number of thre...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Series: | Журнал математической физики, анализа, геометрии |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/106748 |
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