可触知 发表于 2025-3-23 23:26:09

Intersection Products,in A.(.), . = .. (.). Although the case of primary interest is when . is a closed imbedding, so . = . ∩ ., there is significant benefit in allowing general morphisms .. Let .: . → . be the induced morphism. The normal cone ... to . in . is a closed subcone of .* ..., of pure dimension .. We define .

铁塔等 发表于 2025-3-24 06:13:24

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Discrete 发表于 2025-3-24 06:49:19

Excess and Residual Intersections,, .). If a closed subscheme . of . ∩ . is given, the basic problem of residual intersections is to write . · . as the sum of a class on . and a class on a “residual set” .. There is a canonical choice for the class on ., namely.where . is the restriction to . of ..., and .(., .) is the Segre class.

放逐 发表于 2025-3-24 14:22:37

Positivity,rsection class has a corresponding decomposition into Σ .. α., α. ∈ ..(..), (..)=Supp(..). If the bundle . is suitably positive, one can deduce corresponding positivity of the intersection classes, even if the intersections are not proper.

FEAT 发表于 2025-3-24 16:37:44

Correspondences,re of the graph of a rational map, are basic examples, but more general correspondences have played an important role in the development of algebraic geometry. On complete non-singular varieties correspondences have a product β ∘ α, and a correspondence α: . ⊢ . determines homomorphisms α. from .(.)

Parley 发表于 2025-3-24 19:03:17

Bivariant Intersection Theory,or all .′ → ., .′ = . ×..′, all .. In this chapter we formalize the study of such operations. For any morphism .: . → ., a . in . is a collection of homomorphisms from ...′ to ...′, for all .′ → ., all ., compatible with push-forward, pull-back, and intersection products.

Cosmopolitan 发表于 2025-3-25 02:43:34

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Encoding 发表于 2025-3-25 04:28:43

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Ruptured-Disk 发表于 2025-3-25 07:51:20

William Fultonwischen dem Aufbau und dem elektrischen Verhalten des Systems bestehen. Auf der Grundlage dieser Theorie ist es möglich, Transistoren mit spezifischen Eigenschaften zu entwickeln und die endgültigen Daten für gegebene Strukturen vorauszuberechnen. Diese Theorie stellt die Ausgangsbasis für den mit d

Vasodilation 发表于 2025-3-25 14:25:27

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查看完整版本: Titlebook: Intersection Theory; William Fulton Book 1984 Springer-Verlag Berlin Heidelberg 1984 Algebraische Geometrie.Blowing up.Divisor.Schnittheor