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Results tagged with perverse-sheaves
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user 324103
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About an application of BBD decomposition theorem
There is a following proposition in the famous paper on Koszul duality by Beilinson, Ginzburg and Soergel:
let $G$ denote a semisimple complex Lie group, let $B$, $Q$ and $W^Q$ denote a pair of a Bore …
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