Cohomology of [flag varieties](Unsorted/flag%20variety.md)
![Pasted image 20211206184251.png](Pasted%20image%2020211206184251.png)

![Pasted image 20211206184339.png](Pasted%20image%2020211206184339.png)

[K-theory](Unsorted/K-theory.md) for [flag varieties](Unsorted/flag%20variety.md):
![Pasted image 20211206184400.png](Pasted%20image%2020211206184400.png)

![Pasted image 20211206184418.png](Pasted%20image%2020211206184418.png)

![Pasted image 20211206184500.png](Pasted%20image%2020211206184500.png)

![Pasted image 20211206184609.png](Pasted%20image%2020211206184609.png)

https://academic.oup.com/imrn/article/2020/2/487/4930762

![Pasted image 20211206184916.png](Pasted%20image%2020211206184916.png)


See [Kazhdan Lusztig conjecture](Unsorted/Kazhdan%20Lusztig%20conjecture.md), [intersection cohomology](Unsorted/intersection%20cohomology.md), [weight (Deligne)](weight%20(Deligne)), [D-modules](D-modules), [perverse sheaves](Unsorted/perverse%20sheaf.md), [Riemann-Hilbert correspondence](Unsorted/Riemann-Hilbert%20correspondence.md).
![Pasted image 20211206185217.png](Pasted%20image%2020211206185217.png)