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Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology.

3 votes
0 answers
513 views

Schubert varieties of flag variety , perverse sheaves

The set of Schubert varieties in a flag variety is in one-to-one correspondence with elements of the Weyl group via left cells. There is also some relation between products of Schubert varieties and …
yinjing bi's user avatar
2 votes
1 answer
504 views

Convolution product of affine flag variety

I know the definition of convolution product in D.Gaitsgory's paper, but I can give a convolution product $p:G(K)\times Fl \to Fl\times Fl$,$q:G(K)\times Fl \to G(K)\times_{G(O)} Fl$, $m:G(K)\times_ …
yinjing bi's user avatar