arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2302.07447math.GT
收藏

Kirby-Thompson不变量的若干下界

Some lower bounds for the Kirby-Thompson invariant

Nobutaka Asano, Hironobu Naoe, Masaki Ogawa

摘要:

Kirby和Thompson利用三分性引入了$4$ -流形的一个非负整数值不变量,称为Kirby-Thompson不变量。本文给出了一类$4$ -流形的Kirby-Thompson不变量的下界.作为应用,我们确定了$L(2,1)$的自旋的Kirby-Thompson不变量,这是具有非平凡Kirby-Thompson不变量的$4$ -流形的第一个例子。我们还证明了存在具有任意大Kirby-Thompson不变量的$4$ -流形。

英文摘要:

Kirby and Thompson introduced a non-negative integer-valued invariant, called the Kirby-Thompson invariant, of a $4$-manifold using trisections. In this paper, we give some lower bounds for the Kirby-Thompson invariant of certain $4$-manifolds. As an application, we determine the Kirby-Thompson invariant of the spin of $L(2,1)$, which is the first example of a $4$-manifold with non-trivial Kirby-Thompson invariant. We also show that there exist $4$-manifolds with arbitrarily large Kirby-Thompson invariant.

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。

↑