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- W3157030717 abstract "Abstract In this paper, we continue the discussion about relations between exponential polynomials and generalized moment functions on a commutative hypergroup. We are interested in the following problem: is it true that every finite-dimensional variety is spanned by moment functions? Let m be an exponential on X . In our former paper, we have proved that if the linear space of all m -sine functions in the variety of an m -exponential monomial is (at most) one-dimensional, then this variety is spanned by moment functions generated by m . In this paper, we show that this may happen also in cases where the m -sine functions span a more than one-dimensional subspace in the variety. We recall the notion of a polynomial hypergroup in d variables, describe exponentials on it and give the characterization of the so-called m -sine functions. Next we show that the Fourier algebra of a polynomial hypergroup in d variables is the polynomial ring in d variables. Finally, using the Ehrenpreis–Palamodov Theorem, we show that every exponential polynomial on the polynomial hypergroup in d variables is a linear combination of moment functions contained in its variety." @default.
- W3157030717 created "2021-05-10" @default.
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- W3157030717 date "2022-07-06" @default.
- W3157030717 modified "2023-10-14" @default.
- W3157030717 title "Spectral synthesis via moment functions on hypergroups" @default.
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- W3157030717 doi "https://doi.org/10.1515/forum-2021-0213" @default.
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