论文标题
缩放曲线模量空间的小分辨率
Small resolutions of moduli spaces of scaled curves
论文作者
论文摘要
我们构建了Moduli空间的小分辨率$ \覆盖{q} _n $ stable缩放$ n $ scriped $ n $ - Ziltener和ma'u-woodward和moduli space $ \ overline {p} _n $ stable $ n $ n $ n $标记的$ { $ \ overline {p} _n $的分辨率是与完整图的图形矩阵相对应的增强奇妙品种。 $ \ overline {q} _n $的分辨率是进一步的爆炸,也是$ {\ mathbb p}^{n-1} $中安排的绝妙模型。
We construct small resolutions of the moduli space $\overline{Q}_n$ of stable scaled $n$-marked lines of Ziltener and Ma'u--Woodward and of the moduli space $\overline{P}_n$ of stable $n$-marked ${\mathbb G}_a$-rational trees introduced in earlier work. The resolution of $\overline{P}_n$ is the augmented wonderful variety corresponding to the graphic matroid of the complete graph. The resolution of $\overline{Q}_n$ is a further blowup, also a wonderful model of an arrangement in ${\mathbb P}^{n-1}$.