发帖
雷达卡
摘要翻译：
部分标志簇G/P的全非负部分已被第一作者证明为半代数胞的并集。此外，她还表明细胞的闭合是较小细胞的结合。在这篇文章中，我们给出了每个细胞的胶合图来证明G/P的完全非负部分是CW复合物。这推广了Postnikov、Speyer和第二作者对Grassmannians的一个结果。
---
英文标题：
《The totally nonnegative part of G/P is a CW complex》
---
作者：
Konstanze Rietsch, Lauren Williams
---
最新提交年份：
2008
---
分类信息：
一级分类：Mathematics 数学
二级分类：Algebraic Geometry 代数几何
分类描述：Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology
代数簇，叠，束，格式，模空间，复几何，量子上同调
--
---
英文摘要：
The totally nonnegative part of a partial flag variety G/P has been shown by the first author to be a union of semi-algebraic cells. Moreover she showed that the closure of a cell is the union of smaller cells. In this note we provide glueing maps for each of the cells to prove that the totally nonnegative part of G/P is a CW complex. This generalizes a result of Postnikov, Speyer and the second author for Grassmannians.
---
PDF链接：
https://arxiv.org/pdf/0802.0889
京公网安备 11010802022788号
