在明科夫斯基平面中的单色无限集.
Nóra Frankl1,2, Panna Gehér2,3, Arsenii Sagdeev2,4
1The Open University, Milton Keynes, UK.
概括
对于平面中的L_p-规范 (1 < p < ∞),存在一个双色,防止任何无限集M的单色副本.然而,对于多边形规范,一些无限集M在任何双色下保证单色副本.
科学领域:
- 几何测量理论 几何测量理论
- 组合几何组合几何学
- 功能分析是一种功能分析.
背景情况:
- 对几何物体颜色的研究是数学中的一个基本问题.
- 在不同的距离指标下调查单色配置的存在至关重要.
- 了解L_p-规范和多边形规范的属性在几何分析中至关重要.
研究的目的:
- 为了确定平面的双色化可以避免给定无限集合的单色异色度副本的条件.
- 探索L_p规范和多边规范之间关于单色配置的对比.
- 为了确定在特定的标准条件下保证形成单色副本的集合的存在.
主要方法:
- 利用拉姆西理论和拓方法的概念.
- 构建特定的欧几里德平面的双色.
- 分析不同度量空间中等量嵌入的属性.
主要成果:
- 证明了对于任何L_p-规范 (1 < p < ∞) 和任何无限集合M在R^2中,存在一个双色,使得M的任何对称副本都不是单色的.
- 证明,对于平面中的任何多边形规范,存在一个无限的集合M,这样每一个双色都包含了M的单色异色度副本.
结论:
- 规范的性质显著影响单色配置的存在.
- 与多边形规范相比,L_p规范在避免单色集合方面提供了更大的灵活性.
- 这项研究突出了尺度属性和组合色彩原理之间的相互作用.
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