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Representation of powers by polynomials over function fields and a problem of Logic

We solve a generalization of Büchi's problem in any exponent for function fields, and briefly discuss some consequences on undecidability. This provides the first example where this problem is solved for rings of functions in the case of an exponent larger than 3.

preprint2011arXivOpen access
Hector Pasten
math.NT
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Hector Pasten

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