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Results tagged with schubert-varieties
Search options questions only
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user 147080
1
vote
0
answers
130
views
Bruhat decomposition and standard Frobenius
Let $G$ be a linear algebraic group define over $\overline{\mathbb{F}_p}$, consider it as a subgroup of $\operatorname{GL}(n)$. Let $F_p$ be the standard Frobenius. Let $B$ and $Q$ be an $F_p$-stable …
- 653
4
votes
1
answer
415
views
May Schubert cell intersection with opposite big cell polynomial count?
Let $SL(n)$ be algebraic group defined over finite field $\mathbb{F}_{p^n}$, $B$ be Borel subgroup consist of upper triangular matrices and $T$ be maximal torus consist of diagonal matrices. Let $W$ b …
- 653
3
votes
0
answers
117
views
Richardson variety over arbitrary field
Let $G$ be a split semisimple algebraic group. Let $B$ and $T$ be borel subgroup ,maximal torus respectively. In this case the Weyl group $W(B,T)$ is a constant finite group scheme. Let $P$ be a parab …
- 653