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Summary: Parity sheaves
Geordie Williamson
(joint with Daniel Juteau and Carl Mautner)
July 8, 2009
Geordie Williamson (joint with Daniel Juteau and Carl Mautner) Parity sheaves
Throughout:
X will denote a complex algebraic variety equipped with the
classical topology;
X will be equipped with a Whitney stratification into smooth,
connected, locally closed strata:
X
§
X
k will denote a field (usually of characteristic ¡ 0).
Geordie Williamson (joint with Daniel Juteau and Carl Mautner) Parity sheaves
To this one may associate an abelian category:
PpX, kq
the category of perverse sheaves with coefficients in k.
Geordie Williamson (joint with Daniel Juteau and Carl Mautner) Parity sheaves
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