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arXiv 1209.5541math.AG
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$\tilde{D}_5$的一种新构造--Slodowy切片的奇异性和推广

A new construction of $\tilde{D}_5$-singularities and generalization of Slodowy slices

K. Nakamoto, M. Tosun

摘要:

任何$\tilde{D}_5$型的单椭圆奇点都可以通过取半单李代数${\frak sl}(2, {\mathbb C}) \oplus {\frak sl}(2, {\mathbb C})$中的幂零簇与四维"好片"的交而得到。我们纯粹用李代数的结构来描述这些新的切片。利用四维"好切片"构造了$\tilde{D}_5$-奇点的半泛变形空间。

英文摘要:

Any simple elliptic singularity of type $\tilde{D}_5$ can be obtained by taking the intersection of the nilpotent variety and the 4-dimensional "good slices" in the semi-simple Lie algebra ${\frak sl}(2, {\mathbb C}) \oplus {\frak sl}(2, {\mathbb C})$. We describe these new slices purely by the structure of the Lie algebra. We also construct the semi-universal deformation spaces of $\tilde{D}_5$-singularities by using the 4-dimensional "good slices".

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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