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首页> 外文期刊>SIAM Journal on Discrete Mathematics >A TWO-SET PROBLEM ON COLORING THE INTEGERS
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A TWO-SET PROBLEM ON COLORING THE INTEGERS

机译:着色的两个问题

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摘要

For positive integers m, r and a system of inequalities R, define f(m, r, R) to be the minimum integer n such that for every coloring of {1,2,... ,n} with r colors, there exist two monochromatic subsets X, Y is contained [1,n] (but not necessarily of the same color) which satisfy: (i) R, (ii) the largest number in X is less than the smallest number in Y, (iii) |X| = |Y| = m. Let L_X = -2x_1+x_(m-1)+x_m for x_1, x_(m-1), x_m ∈ X. L_Y = -2y_1 +y_(m-1) +y_m for y_1, y_(m-1), y_m ∈ Y, and let R := L_X ≤ L_Y. In this paper we prove that f(m, r, R) = 5m - 3 and consider the corresponding question for zero-sum sets and generalize our result in the sense of the Krdos-Ginzburg- Ziv theorem.
机译:对于正整数m,r和一个不等式R,将f(m,r,R)定义为最小整数n,以便对于{1,2,...,n}的每种着色都具有r颜色,存在两个单色子集X,Y包含[1,n](但不一定具有相同的颜色),它们满足:(i)R,(ii)X中的最大数小于Y中的最小数,(iii )| X | = | Y | =米令L_X = -2x_1 + x_(m-1)+ x_m对于x_1,x_(m-1),x_m∈X.L_Y = -2y_1 + y_(m-1)+ y_m对于y_1,y_(m-1) ,y_m∈Y,令R:= L_X≤L_Y。在本文中,我们证明f(m,r,R)= 5m-3,并考虑了零和集的相应问题,并在Krdos-Ginzburg-Ziv定理的意义上推广了我们的结果。

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