Van Der Waerden's Theorem: Exposition and Generalizations

نویسنده

  • William Gasarch
چکیده

as a, a + p1(d), a + p2(d), . . . , a + pk−1(d) where pi(d) = id. Why these functions? We ponder replacing pi with other functions. The following remarkable theorem was first proved by Bergelson and Leibman [1]. They proved it by first proving the polynomial version of the Hales-Jewitt Theorem [2] (see Section 4 for a statement and proof of the original Hales-Jewitt Theorem), from which Theorem 1.8 follows easily. Their proof of the polynomial version of the Hales-Jewitt Theorem used ergodic methods. A later proof by Walters [7] uses combinatorial techniques. Hence, putting all of this together, there is a combinatorial proof of Theorem 1.8. The purpose of this note is to put all of this together in a self-contained way.

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تاریخ انتشار 2007