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# Questions

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### What does the Lefschetz principle (in algebraic geometry) mean exactly?

mar 10 12 at 16:03 stjc 3076

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### relative resolution of singularity

apr 9 at 20:06 Sándor Kovács 23.8k25273

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### On condition when the push-forward of coherent sheaf is locally free

nov 26 at 14:03 Olivier Benoist 2,7061018

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### Is there a classification of surface(smooth and projective) over arbitrary field?

feb 26 12 at 15:15 Daniel Loughran 2,396617

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### Is there non-simple-connected projective variety(over C) with trivial etale fundamental group?

apr 7 at 15:03 Misha 12.6k12648

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