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arXiv 2408.07792math.AGmath.DS
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三角形相似类的栈

The Stack of Similarity Classes of Triangles

Eric Brussel, Madeleine Goertz, Elijah Guptill, Kelly Lyle

AI总结:

本研究构造了带标号有向三角形相似类的光滑紧模空间$\frak D$(三个射影平面的连通和),其可吹下投影至黎曼球面和2-环面,并通过二面体群$D_6$作用得到无标号无向三角形相似类的商栈。

摘要:

我们构造了带标号、有向三角形相似类的光滑紧模空间。该空间记为$\boldsymbol{\frak D}$,是三个射影平面的连通和,可通过吹下投影到文献中已有的两个形状空间:著名的(黎曼)球面(\textit{Kend84}、\textit{Beh}、\textit{Montgomery}、\textit{ES15}),以及较不为人知的2-环面(\textit{BG23})。二面体群$D_6$的自然作用定义了绝对(无标号、无向)类的商栈$[\frak D/D_6]$。

英文摘要:

We construct the smooth, compact moduli space of similarity classes of labeled, oriented triangles. The space, denoted $\mathfrak D$, is a connected sum of three projective planes, and projects via blowdown to two shape spaces that have appeared in the literature: the well-known (Riemann) sphere (\cite{Kend84}, \cite{Beh}, \cite{Montgomery}, \cite{ES15}), and the less-well-known 2-torus (\cite{BG23}). A natural action by the dihedral group $D_6$ defines the quotient stack $[\mathfrak D/D_6]$ of absolute (unlabeled, unoriented) classes.

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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