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# Questions

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### Is a real power series that maps rationals to rationals defined by a rational function?

oct 17 10 at 17:34 Pietro Majer 19.7k12469

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### When are intersections of finitely generated field extensions finitely generated?

apr 12 10 at 12:05 Martin Brandenburg 29k245129

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### A question about open induction

feb 3 11 at 18:12 Emil Jeřábek 10.6k12441

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### Approximating polynomials in R[x] using integer-valued polynomials

dec 29 10 at 16:51 Pietro Majer 19.7k12469

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### Distribution mod 1 of Factorial Multiples of Real Numbers.

nov 12 10 at 4:26 Anton Geraschenko♦♦ 13.7k348108

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### A Diophantine Decision Problem

jun 7 10 at 20:22 MathOverflow 123

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### A Simple Generalization of the Littlewood Conjecture

apr 21 10 at 23:29 gowers 17.8k977130

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### A decision problem concerning polynomial rings

may 4 10 at 15:17 Guntram 2,3561718

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### How to see the ring of all polynomials (with integer coefficients) that are bounded on a given real algebraic set?

apr 15 10 at 10:42 damiano 3,887817

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### Real algebraic sets bounded away from integer points

feb 1 11 at 9:26 SJR 3,0421616