ovation 发表于 2025-3-26 23:09:37

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fledged 发表于 2025-3-27 03:57:41

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PALMY 发表于 2025-3-27 06:06:33

Minimal Models of Ruled Surfaces,eptional curve of the first kind. By (3.30), there exists a unique contraction .of F′ to a nonsingular point; we shall denote this contraction by cont .. As . is a morphism and .′ is a component of a fiber of . o π, we get a commutative diagram:

地名表 发表于 2025-3-27 13:14:50

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亵渎 发表于 2025-3-27 17:25:15

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Heterodoxy 发表于 2025-3-27 20:19:14

,Surfaces with Canonical Dimension Zero (char(k) ≠ 2, 3),

Gleason-score 发表于 2025-3-28 01:46:36

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ARY 发表于 2025-3-28 03:21:13

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后天习得 发表于 2025-3-28 06:36:49

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翻布寻找 发表于 2025-3-28 11:19:36

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查看完整版本: Titlebook: Algebraic Surfaces; Lucian Bădescu Textbook 2001 Springer-Verlag New York 2001 Dimension.Divisor.Grad.Grothendieck topology.algebra.algebr