Titlebook: Discrete Spectral Synthesis and Its Applications; László Székelyhidi Book 2006 Springer Science+Business Media B.V. 2006 Abelian group.bra

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Difference equations in several variables,equations with constant coefficients. The method is based on the simple fact that varieties in .(ℤ.) are exactly the solution spaces of such systems of equations. In the case . = 1 the situation reduces to the classical theory of linear homogeneous difference equations with constant coefficients, as

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Spectral analysis and synthesis on multivariate polynomial hypergroups,bles. If for any nonnegative integer . the symbol . denotes the set of all elements . in . for which the degree of . is not greater than ., then we suppose that the polynomials . with . in . form a basis for all polynomials of degree not greater than ..

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