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首页> 外文期刊>Bulletin of the Korean Mathematical Society >Real polyhedral products, Moore's conjecture, and simplicial actions on real toric spaces
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Real polyhedral products, Moore's conjecture, and simplicial actions on real toric spaces

机译:真正的多面体产品,摩尔的猜想以及对实际复曲面空间的简单动作

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The real moment-angle complex (or, more generally, real polyhedral product) and its real toric space have recently attracted much attention in toric topology. The aim of this paper is to give two interesting remarks regarding real polyhedral products and real toric spaces. That is, we first show that Moore's conjecture holds to be true for certain real polyhedral products. In general, real polyhedral products show some drastic difference between the rational and torsion homotopy groups. Our result shows that at least in terms of the homotopy exponent at a prime this is not the case for real polyhedral products associated to a simplicial complex whose minimal missing faces are all k-simplices with k≥2. Moreover, we also show a structural theorem for a finite group G acting simplicially on the real toric space. In other words, we show that G always contains an element of order 2, and so the order of G should be even.
机译:实际的矩角复合体(或更广泛地说,是真正的多面体乘积)及其实际的复曲面空间最近在复曲面拓扑结构中引起了很多关注。本文的目的是针对真实的多面体乘积和真实的复曲面空间给出两个有趣的评论。也就是说,我们首先证明摩尔定律对某些真实的多面体产品成立。通常,真正的多面体产品在有理同构和扭转同构组之间显示出巨大的差异。我们的结果表明,至少就素数的同伦指数而言,与简单复数相关联的真实多面体产品并非如此,其简单缺失面都是k≥2的k个单纯形。此外,我们还展示了一个简单的作用于实复曲面空间上的有限群G的结构定理。换句话说,我们证明G始终包含2阶元素,因此G的阶应为偶数。

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