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Author: LASER-wikipedia2
Data
English[en]
Guido Castelnuovo proved that any complex surface such that q and P2 (the irregularity and second plurigenus) both vanish is rational.
Chinese[zh]
吉多·卡斯特爾諾沃證明,任一複曲面,若使得 q 及 P2(不規則點及第二正則虧格)均消失,則該曲面為有理曲面。