珍爱 发表于 2025-3-21 17:18:05

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没收 发表于 2025-3-21 23:41:46

Intersection Indices true only if we count each root with its multiplicity. Similarly, to formulate general theorems on the number of points of intersection of subvarieties, we ought to assign certain multiplicities to these points. This will be done in the present subsection.

Axon895 发表于 2025-3-22 03:55:23

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dyspareunia 发表于 2025-3-22 05:22:02

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reaching 发表于 2025-3-22 09:51:30

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Brittle 发表于 2025-3-22 15:21:24

Heidelberger Gelehrtenlexikon 1386–1651ly, the genus is a most important invariant of an algebraic curve, however, it does not determine the curve by any means. We have seen in Ch. III, § 5.6, that there exist very many non-isomorphic curves of one and the same genus. The connection between a variety . and the space .(ℂ) for varieties of higher dimensions bears a similar character.

明智的人 发表于 2025-3-22 20:55:03

Heinrich Krebs,Heinrich Schippergesn the study of quasiprojective varieties with which we have been concerned previously. On the other hand, we arrive in this way at a generalization of this concept, which makes the field of applicability of algebraic geometry far more extensive.

凝乳 发表于 2025-3-23 00:31:34

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EXUDE 发表于 2025-3-23 04:45:35

Divisors and Differential Formsnts ., …, . ∈ . with multiplicities ., …, .. A rational function .(.) = .(.)/.(.), ., . ∈ .[.] is determined by the zeros of the polynomials . and ., that is, by the points at which it vanishes or is non-regular. To distinguish the roots of . from those off we take their multiplicities with a minus

hazard 发表于 2025-3-23 07:52:14

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查看完整版本: Titlebook: Basic Algebraic Geometry; Igor R. Shafarevich Book 19741st edition Springer-Verlag Berlin Heidelberg 1974 Algebraic.Basic.Manifold.algebra