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Cotangent complex

In mathematics, the cotangent complex is a common generalisation of the cotangent sheaf, normal bundle and virtual tangent bundle of a map of geometric spaces such as manifolds or schemes. If f : X → Y {\displaystyle f:X\to Y} is a morphism of geometric or algebraic objects, the corresponding cotangent complex L X / Y ∙ {\displaystyle \mathbf {L}…

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Works, Properties of the cotangent complex & Early work on cotangent complexes

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Overview

Motivation

Early work on cotangent complexes

The definition of the cotangent complex

Cotangent complexes in deformation theory

Properties of the cotangent complex

Examples

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Cotangent complex

Nodes91
Edges90
Triples105
Avg. degree1.98
Density0.021978
Components1

How this topic connects Entity context

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Cotangent complex

Top relations

related to Characterization of local complete intersections · 20
Cotangent complex → A-algebra, A-module, André, Annals, As, Avramov, Avramov's, B-modules, B/A, Briggs, Iyengar, Let, Lichtenbaum, Luchezar Avramov, Quillen, Schlessinger, The, This, Thus, Tor
related to Early work on cotangent complexes · 17
Cotangent complex → Alexander Grothendieck, All, Cartier, Cotangent, Exposé VIII, If, In, It, J/J, Omega, Pierre Berthelot, Riemann-Roch, SGA, The, This, V/Y, X/Y
related to Closed embeddings in smooth schemes · 11
Cotangent complex → Kähler, Let, Omega, Sch, The, This, To, Using, X/S, X/Y, Y/S
related to Motivation · 11
Cotangent complex → If, In, Kähler, Lichtenbaum, Literally, Most, Omega, Schlessinger, Suppose, The, X/Y
related to Smooth schemes · 10
Cotangent complex → In, In Berthelot's, Kähler, Let, Omega, Sch, Spec, Then, We, X/S
related to The definition of the cotangent complex · 9
Cotangent complex → André, Choose, For, Illusie, Iterating, Quillen, Such, Suppose, The
related to Flat base change · 7
Cotangent complex → A-algebra, A-algebras, If, Suppose, The, Then, Tor
related to Flat descent · 6
Cotangent complex → Amitsur, Bhargav Bhatt, In, More, R-algebras, The
is a · 4
Cotangent complex → common generalisation of the cotangent sheaf, fact that given a morphism of S, same as the Kähler differentials, same as the Kähler differentials.Closed embeddings in smooth schemesLet i
related to Local complete intersection · 3
Cotangent complex → For, More, This

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Important terminology

displaystyle cotangent complex morphism theory mathbf bullet exact smooth sequence kähler differentials deformation simplicial given algebraic complexes omega morphisms derived

Entity relationships Subject–Predicate–Object triples

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SubjectPredicateObjectConfidenceSrc
Cotangent complexis acommon generalisation of the cotangent sheaf0.90text
Cotangent complexis afact that given a morphism of S0.90text
Cotangent complexis asame as the Kähler differentials.Closed embeddings in smooth schemesLet i0.90text
Cotangent complexis asame as the Kähler differentials0.90text
manifolds or schemesinstance ofnormal bundle and virtual tangent bundle of a map of geometric spaces0.80text
Cotangent complexrelated to Characterization of local complete intersectionsThe0.60section
Cotangent complexrelated to Characterization of local complete intersectionsLet0.60section
Cotangent complexrelated to Characterization of local complete intersectionsA-algebra0.60section
Cotangent complexrelated to Characterization of local complete intersectionsAs0.60section
Cotangent complexrelated to Characterization of local complete intersectionsQuillen0.60section
Cotangent complexrelated to Characterization of local complete intersectionsLichtenbaum0.60section
Cotangent complexrelated to Characterization of local complete intersectionsSchlessinger0.60section

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