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Название: Analyticity of Density of States in a Gauge-Invariant Model for Disordered Electronic Systems
Авторы: Constantinescu F., Felder G., Gawedzki K.
The n-orbital gauge-invariant model of disordered electronic systems proposed by Wegner is studied in the regime of dominant diagonal disorder. Analyticity of the density of states is established in two cases: (a) when the number of orbitals is small, (b) when the number of orbitals is large and the energy is in the expected extended states region.