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JOURNALS // Vestnik Samarskogo Universiteta. Estestvenno-Nauchnaya Seriya // Archive

Vestnik Samarskogo Gosudarstvennogo Universiteta. Estestvenno-Nauchnaya Seriya, 2014 Issue 7(118), Pages 17–31 (Mi vsgu424)

This article is cited in 2 papers

Mathematics

On the uncertainty constants for linear combination of some subsystems of coherent states

M. V. Zhuravleva, I. Ya. Novikovb, S. N. Ushakovb

a OJSC "Vodokanal", Moscow, 105005, Russian Federation
b Voronezh State University, Voronezh, 394006, Russian Federation

Abstract: Uncertainty constants for coherent states obtain irreduciable value. But problems of interpolation and orthogonalization requires the original system of functions to move to linear combinations. Localization of linear combinations of coherent states subsystems which have been set on a rectangular lattice are studied. Formulas for uncertainty constants of these combinations in general case and at additional assumptions on coefficients are received. Formulas for uncertainty constants of linear combinations of uniform shifts of Gauss function in general case and at additional assumptions on coefficients are received. Results of numerical calculations are given for the interpolating scaling functions constructed for uniform shifts of Gauss function.

Keywords: uncertainty constant, coherent states, Fourier transformation, uniform shifts of single function, Gaussian function, node function, frames.

UDC: 519.57, 519.6:517

Received: 25.04.2014
Accepted: 25.04.2014



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