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arXiv 0811.0712math.GT
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虚链路的虚交叉数估计

On Virtual Crossing Number Estimates For Virtual Links

Denis Afanasiev, Vassily Manturov

摘要:

我们解决的问题,检测最小的虚拟图相对于虚拟交叉点的数量。这个问题是密切相关的问题检测的最小数量的额外的交点的通用浸入的一个奇异的链接在$R^{2}$。我们解决这个问题,所谓的$ξ$ -多项式的领导(最低)度自然估计虚拟交叉数。给出了极小性的几个充分条件以及无穷级数的新例子。我们还陈述了几个关于$M$ -图的公开问题,根据我们的充分条件,这些图是极小的。

英文摘要:

We address the question of detecting minimal virtual diagrams with respect to the number of virtual crossings. This problem is closely connected to the problem of detecting the minimal number of additional intersection points for a generic immersion of a singular link in $R^{2}$. We tackle this problem by the so-called $ξ$-polynomial whose leading (lowest) degree naturally estimates the virtual crossing number. Several sufficient conditions for minimality together with infinite series of new examples are given. We also state several open questions about $M$-diagrams, which are minimal according to our sufficient conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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