Geodesic
Estimates for the entries of inverse matrices and the spectral analysis of linear operators
Izvestiya. Mathematics, Tome 61 (1997) no. 6, pp. 1113-1135 Cet article a éte moissonné depuis la source Math-Net.Ru

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Using the representation theory of Abelian groups, we estimate the entries of inverse matrices of linear operators and apply the results to the spectral theory of linear operators. 
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A. G. Baskakov. Estimates for the entries of inverse matrices and the spectral analysis of linear operators. Izvestiya. Mathematics, Tome 61 (1997) no. 6, pp. 1113-1135. http://geodesic.mathdoc.fr/item/IM2_1997_61_6_a0/

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