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Feb 24, 2010 at 3:02 comment added Charles Siegel For more on the Hodge-Lefschetz operators and the $\mathfrak{sl}_2$ action they give, there's Tim Perutz's great answer to my (not-as-great) question: mathoverflow.net/questions/14667/…
Feb 24, 2010 at 1:17 history answered José Figueroa-O'Farrill CC BY-SA 2.5