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Results tagged with algebraic-groups
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user 119460
Algebraic varieties with group operations given by morphisms, or group objects in the category of algebraic varieties, the category of algebraic schemes, or closely related categories.
9
votes
1
answer
563
views
Geometric interpretations of nil-Hecke ring and affine Hecke algebra
I am interested in two related constructions which give us either the cohomology or the $T \times \mathbb{C}^*$-equivariant $K$-theory of flag varieties.
Let $G$ be a semisimple, simply connected alg …
- 63.9k
5
votes
Accepted
Question on geometric invariant theory
I believe this is addressed on page 52, underneath the statement of Iwahori's theorem. He provides an argument for why Iwahori's result can be strengthened to G reductive by considering $G \rightarrow …
- 841
6
votes
1
answer
291
views
Real forms of complex reductive groups
I have a collection of related (to me) questions, which stem from the fact that I feel like I have a bunch of pieces, but not a full clear picture. I'm curious about forms of reductive groups in gener …
- 14.2k