Can you hear the shape of a Beatty sequence?

Details Can you hear the shape of a Beatty sequence? Can you hear the shape of a Beatty sequence?

2008-08-31

arxiv.org/abs/0809.0004v1

Mathematics

Number Theory

15 pages

Scientific paper

Let K(x_1,...,x_d) be a polynomial. If you are not given the real numbers \alpha_1, \alpha_2, ...,\alpha_d, but are given the polynomial K and the sequence a_n=K(\floor{n\alpha_1},\floor{n\alpha_2},...,\floor{n\alpha_d}), can you deduce the values of \alpha_i? Not, it turns out, in general. But with additional irrationality hypotheses and certain polynomials, it is possible. We also consider the problem of deducing \alpha_i from the integer sequence with nested flooring (\floor{\floor{... \floor{\floor{n\alpha_1}\alpha_2}... \alpha_{d-1}}\alpha_d})_{n=1}^\infty.

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