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Erdős problem / erdos

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Problem 187

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  1. vf_629ad4ad848afee8

    theoretical

    Erdős Problem #187: declared status 'open'. Formalized: no. Find the best function f(d)f(d) such that, in any 2-colouring of the integers, at least one colour class contains an arithmetic progression with common difference dd of length f(d)f(d) for infinitely many dd. Prize: no. Tags: additive combinatorics, ramsey theory.

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