Geodesic
Electron in a homogeneous crystal of point atoms with internal structure. II
Teoretičeskaâ i matematičeskaâ fizika, Tome 74 (1988) no. 1, pp. 82-93 
P. B. Kurasov; B. S. Pavlov. Electron in a homogeneous crystal of point atoms with internal structure. II. Teoretičeskaâ i matematičeskaâ fizika, Tome 74 (1988) no. 1, pp. 82-93. http://geodesic.mathdoc.fr/item/TMF_1988_74_1_a6/
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     title = {Electron in~a~homogeneous crystal of~point atoms with internal {structure.~II}},
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Voir la notice de l'article provenant de la source Math-Net.Ru

A spectral analysis is made of a Schrödinger operator with zero-range potential of the type of a one- or two-dimensional lattice in the presence of internal structure. The relationship between the resonances of an isolated atom and the spectral properties of the crystal is established.

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