SGA 7
The items of SGA 7 that a declaration of an article carries, numbered as printed, each with the articles it is in and the attribute's comments where there are any.
Exposé I
- (0.0.2): 59.32 Henselian rings (“ring case”)
- (0.0.3): 10.153 Henselian local rings (“partial”)
- (0.0.4): 59.33 Stalks of the structure sheaf (“strict henselization”)
- (0.0.5): 9.6 Field extensions
- (0.1): 64.18 On l-adic sheaves (“b)”; “more general”)
- (0.1.1): 64.20 Cohomological interpretation (“Q_ℓ clause of case 0.1.1”)
- (0.1.5): 63.15 Applications (“special case”)
- (0.3): 59.56 Galois action on stalks, 15.114 Galois extensions and ramification (“finite Galois case”; “partial”), 58.13 Ramification theory (“I/P ≅ Ẑ(1), P pro-p”)
- (0.5): 16.4 Intermezzo: Néron desingularization (“Lemma 0.5.1”)
- (0.5.1): 16.4 Intermezzo: Néron desingularization (“ind-smooth colimit”)
- (0.5.3): 10.160 The Cohen structure theorem
- (1.3): 15.22 Torsion free modules (“partial”)
- (2.1): 59.94 The cospecialization map (“more general”)
- (2.4): 59.93 Local acyclicity (“partial”)
- (3.5): 55.8 Models (“partial”)
- (5.1): 109.22 Stable curves (“(2), special case”; “special case”)
- (5.2): 58.14 Geometric and arithmetic fundamental groups (“more general”; “surjectivity of π₁(X_η”)
- (6.3): 64.3 Frobenii
Exposé II
- (2.1): 37.17 Closed immersions between smooth schemes (“more general”)
- (2.3.1): 58.10 Local connectedness (“partial”), 58.31 Tame ramification (“Extension clause”)
Exposé IX
- (2.2.1): 39.9 Abelian varieties (“more general”)
- (2.2.3): 59.32 Henselian rings (“(4), special case”)
- (2.2.4): 10.153 Henselian local rings (“more general”), 58.9 Finite étale covers of proper schemes (“more general”)
- (3.1): 5.19 Specialization
- (3.1.3): 41.14 Topological properties of étale morphisms (“more general”)
- (3.2.1): 33.43 Curves (“special case”)
- (4.3.2): 33.36 Frobenii (“partial”; “special case”)
- (4.7.3): 10.14 Base change
- (7.1.3): 99.14 The stack of polarized proper schemes (“partial”)
- (9.4): 6.10 Sheaves of modules, 18.10 Sheaves of modules
- (9.4.3): 59.28 Kummer theory (“special case”)
- (9.7): 15.113 Extensions of discrete valuation rings
- (10.3): 15.113 Extensions of discrete valuation rings (“special case”)
- (10.5.4): 53.16 Multicross and nodal singularities
- (12.1.11): 53.16 Multicross and nodal singularities
- (14.3): 59.28 Kummer theory (“special case”)
Exposé VI
- (1.1(a)): 4.37 Presheaves of groupoids (“groupoid-valued F”), 4.38 Categories fibred in sets (“set-valued F”), 90.21 Groupoids in functors on an arbitrary category (“groupoid in functors”)
- (1.1(c)): 93.9 Schemes (“more general”)
- (1.2): 33.16 Tangent spaces
- (1.3(c)): 90.11 Tangent spaces of functors (“more general”), 90.12 Tangent spaces of predeformation categories (“T ⊗ V ≅ [A(k[V])]”), 33.16 Tangent spaces (“dual numbers k[ε] = k[k]”)
- (1.4): 10.141 Smooth ring maps in the Noetherian case (“more general”)
- (1.5): 90.10 Schlessinger's conditions (“(2)”)
- (1.9): 90.8 Smooth morphisms (“versal formal object”)
- (1.10): 90.14 Minimal versal formal objects (“(ii) uniqueness”)
- (1.11): 90.11 Tangent spaces of functors (“(ii), special case”), 90.13 Versal formal objects (“(i)+(ii) => versal”; “set-valued functor”), 90.15 Miniversal formal objects and tangent spaces (“(i)”; “(ii)”)
- (1.13): 90.10 Schlessinger's conditions (“partial”), 90.15 Miniversal formal objects and tangent spaces (“tangent iso for [A]”)
- (1.14): 90.9 Smooth or unobstructed categories (“Prorepresentable case”; “more general”), 107.2 Versal rings (“special case”)
- (1.15): 90.3 The base category (“morphisms, K a field”; “objects, K a field”), 90.4 The completed base category (“morphisms, K a field”; “objects, K a field”), 90.7 Formal objects and completion categories (“special case”; “Â is cofibered over Ĉ_{Λ”), 90.11 Tangent spaces of functors (“special case”), 33.16 Tangent spaces (“relation ε² = 0”; “special case”)
- (1.16): 90.10 Schlessinger's conditions (“(I)”)
- (1.17): 10.131 Differentials (“d, special case”; “Ω when K is a field”)
- (1.18): 90.12 Tangent spaces of predeformation categories (“(1)”; “partial”)
- (1.19): 90.8 Smooth morphisms (“(1)”), 90.14 Minimal versal formal objects (“(2)”)
- (1.20): 90.14 Minimal versal formal objects (“uniqueness”), 90.15 Miniversal formal objects and tangent spaces (“existence”; “set-valued functor”; “special case”; “uniqueness”)
- (2.1): 90.8 Smooth morphisms (“smooth”), 90.9 Smooth or unobstructed categories (“smooth”)
- (2.2(a)): 90.8 Smooth morphisms (“(iii) => (i)”)
- (2.2(c)): 90.8 Smooth morphisms
- (2.2(d)): 90.7 Formal objects and completion categories (“construction of ξ^#”), 90.8 Smooth morphisms (“lifting criterion”; “smooth ⟺ versal”)
- (2.3): 90.8 Smooth morphisms (“(a)”; “(b)”)
- (2.4): 90.9 Smooth or unobstructed categories (“P smooth <=> R f.smooth”; “P smooth <=> R=Λ[[x]]”)
- (2.5): 90.16 Rim-Schlessinger conditions and deformation categories
- (2.6(b)): 90.8 Smooth morphisms (“The 'if' direction”; “induced functor to 2-fp”), 90.16 Rim-Schlessinger conditions and deformation categories (“homogeneous criterion”; “small extensions”)
- (2.6(c)): 90.19 Infinitesimal automorphisms (“Aut(1_ε) k-structure”)
- (2.7): 90.16 Rim-Schlessinger conditions and deformation categories (“(i) <=> injectivity”; “(ii) vs surjections”; “inj <=> aut surjective”)
- (2.10): 90.14 Minimal versal formal objects (“smallest descent case”)
- (2.11): 90.27 Remarks regarding minimality (“normalized”)
- (2.12): 90.26 Presentations of deformation categories (“more general”)
- (2.13): 90.22 Groupoids in functors on the base category (“prorepresentable”)
- (2.18): 90.18 Schlessinger's theorem on prorepresentable functors
- (3.1(a)): 59.11 Sheaves (“partial”), 90.6 Prorepresentable functors and predeformation categories (“partial”), 26.15 A representability criterion (“partial”), 7.10 Sheafification (“partial”), 7.47 Topologies (“partial”), 18.11 Sheafification of presheaves of modules (“partial”), 18.21 Localization of ringed topoi (“partial”)
- (3.1(b)): 20.9 The Čech complex and Čech cohomology (“partial”), 59.18 Čech cohomology (“H^p = R^p H^0 of cover”), 21.9 Čech cohomology as a functor on presheaves (“H^p = R^p H^0 of cover”; “RH^0 = Čech complex”)
- (4.1(b)): 93.9 Schemes
- (4.1(d)): 93.9 Schemes
- (4.9): 93.10 Morphisms of Schemes (“(a)”)
- (4.10): 93.16 Unobstructed deformation problems (“(a)”)
- (4.13): 93.12 Deformations of completions (“(a), special case”), 93.16 Unobstructed deformation problems (“(b), special case”)
- (4.14): 93.8 Rings (“more general”)
- (4.16): 92.16 Deformations of ring maps and the cotangent complex (“(a), affine case”), 92.21 Deformations of ringed spaces and the cotangent complex (“more general”), 91.2 Deformations of rings and the naive cotangent complex (“(b), affine case”), 91.8 Deformations of schemes (“(b), special case”), 91.14 Deformations of algebraic spaces (“special case”), 93.8 Rings (“(b), special case”), 93.9 Schemes (“special case”), 15.8 Fitting ideals (“Section 5, special case”; “partial”), 37.13 The naive cotangent complex (“identification Ext⁰(X₀”)
- (5.1): 10.112 Homomorphisms and dimension, 10.131 Differentials (“special case”), 31.9 Fitting ideals (“more general”), 15.8 Fitting ideals (“5.1(b), special case”), 71.5 Fitting ideals (“more general”), 76.7 Sheaf of differentials of a morphism (“partial”)
- (5.3): 31.10 The singular locus of a morphism (“(1)”)
- (5.5): 10.131 Differentials (“Coherence of Ω_{X|S}”; “special case”), 29.33 Sheaf of differentials of a morphism (“ordinary schemes”)
- (6.6): 53.16 Multicross and nodal singularities (“dim 1, k alg. closed”)
Exposé VII
- (1.3.8): 10.39 Flat modules and flat ring maps (“flatness clause”), 42.15 Push and pull (“partial”), 41.9 Flat morphisms (“flatness of p”), 59.15 The fpqc topology (“special case”), 56.5 Functors between categories of quasi-coherent modules (“partial”), 39.4 Group schemes (“flatness of p”), 63.5 Weightings and trace maps for locally quasi-finite morphisms (“partial”), 29.15 Morphisms of finite type (“partial”), 29.21 Quasi-finite morphisms (“partial”), 29.26 Flat morphisms (“flatness of p”; “partial”), 26.19 Quasi-compact morphisms (“partial”), 26.21 Separation axioms (“partial”), 7.12 Representable sheaves, 65.4 Lists of useful properties of morphisms of schemes (“partial”), 33.20 Algebraic schemes (“partial”)
- (1.4): 17.4 Sections of sheaves of modules (“special case”)
- (2.0): 7.30 Localization of topoi (“partial”)
- (2.9.6): 39.4 Group schemes (“partial”)
- (3.1): 12.5 Abelian categories (“more general”)
- (3.1.7): 10.71 Ext groups (“special case”)
- (3.2): 13.27 Ext groups (“c(X, special case”), 12.6 Extensions (“special case”)
- (3.2.5): 13.27 Ext groups (“partial”)
- (3.3.6): 10.71 Ext groups (“Exactness at Extⁿ(L•,A)”; “Exactness at Extⁿ(L•,A″)”; “Exactness at Extⁿ⁺¹(L•”; “partial”), 12.6 Extensions (“partial”)
- (3.4): 15.56 Injective modules (“special case”)
- (3.4.9): 10.71 Ext groups (“partial”), 15 More on Algebra: the chapter's own tag (“partial”)
- (3.5): 6.4 Abelian presheaves (“special case”)
- (3.7.5): 10.71 Ext groups (“Exactness at Ext^n(P”; “Exactness at Ext^{n+1}(P”; “special case”), 12.6 Extensions (“special case”), 12.12 Cohomological delta-functors, 15 More on Algebra: the chapter's own tag (“special case”)
- (3.7.6): 10.39 Flat modules and flat ring maps (“partial”), 41.9 Flat morphisms (“partial”)
Exposé VIII
- (0.2): 34.7 The fppf topology (“partial”)
- (1.1): 20.43 Ext sheaves (“partial”), 15.75 Derived hom (“(1.1.2) in D(R)”)
- (1.6): 4.43 Monoidal categories (“more general”)
- (2.1): 15.63 Spectral sequences for Tor (“special case”)
- (4.1): 39.9 Abelian varieties (“Proper group schemes”)
- (5.1): 59.73 More on constructible sheaves (“special case”)
- (5.2): 42.13 Preparation for flat pullback (“partial”), 62.6 Relative cycles (“special case”)
- (6.5.1): 15.123 A regular local ring is a UFD (“special case”)
- (7.0): 26.18 Base change in algebraic geometry
Exposé X
- (1.8): 55.9 The geometry of a regular model (“partial”; “special case”)
- (1.10): 54.16 Contracting exceptional curves (“more general”)
- (1.13): 31.15 Effective Cartier divisors and invertible sheaves (“more general”)
- (1.14): 54.16 Contracting exceptional curves (“partial”)
- (1.15): 55.9 The geometry of a regular model (“partial”)
- (2.4): 31.34 Strict transform (“more general”)
- (2.6): 31.33 Blowing up (“partial”), 43.15 Algebraic multiplicities
- (2.10): 33.39 The delta invariant
- (2.24): 53.19 Nodal curves (“more general”)
- (2.26): 10.36 Finite and integral ring extensions, 10.131 Differentials, 15.22 Torsion free modules, 33.39 The delta invariant (“partial”)
- (2.27): 93.9 Schemes (“more general”)
Exposé XI
- (1.3): 37.7 Universal first order thickenings (“partial”), 37.11 Formally smooth morphisms (“partial”), 29.33 Sheaf of differentials of a morphism (“partial”), 29.35 Smooth morphisms (“partial”)
Exposé XII
- (1.9): 22.3 Differential graded algebras (“more general”)
Exposé XIII
- (0.2): 10.36 Finite and integral ring extensions (“partial”), 59.11 Sheaves (“more general”), 59.32 Henselian rings (“(0.2.3) ring case”), 59.56 Galois action on stalks (“(0.2.5)”), 15.114 Galois extensions and ramification
- (1.1.3): 59.56 Galois action on stalks (“Y = Spec k”)
- (1.2.1): 10.153 Henselian local rings (“the equivalence”), 58.8 Topological invariance of the fundamental group (“FÉt equivalence”), 58.9 Finite étale covers of proper schemes (“more general”)
- (1.2.2): 59.56 Galois action on stalks (“(a)”)
- (1.4.2): 13.9 Cones and termwise split sequences (“partial”), 13.10 Distinguished triangles in the homotopy category (“partial”)
- (2.1.3): 59.33 Stalks of the structure sheaf (“The scheme X_(x̄)”)
- (2.1.6): 38.33 Nagata compactification (“2.1.6 c), special case”; “more general”), 63.9 Derived lower shriek via compactifications (“more general”), 63.11 Derived upper shriek (“more general”), 63.16 More on derived upper shriek (“more general”)
Exposé XIV
- (2.1): 39.4 Group schemes (“partial”), 29.35 Smooth morphisms (“partial”)
- (4.5): 10.16 Cayley-Hamilton (“forward implication”), 26.17 Fibre products of schemes (“partial”), 18.19 Localization of ringed sites (“more general”), 18.21 Localization of ringed topoi (“more general”)
Exposé XIX
- (1.2): 30.8 Cohomology of projective space (“special case”)
- (1.4): 27.22 Grassmannians (“partial”), 59.29 Neighborhoods, stalks and points, 58.10 Local connectedness (“partial”), 58.11 Fundamental groups of normal schemes (“π1(ℓ−S”)
Exposé XV
- (1.2): 5.10 Krull dimension
- (1.2.1): 53.16 Multicross and nodal singularities (“dim 1, alg. closed k”)
- (1.2.5): 53.19 Nodal curves (“ordinary case”)
- (2.1.1): 27.7 Cones (“more general”)
- (2.2.5): 58.13 Ramification theory (“partial”)
Exposé XVI
- (1.6): 59.33 Stalks of the structure sheaf (“S_(s̄) only”), 59.56 Galois action on stalks
- (1.13): 55.14 Semistable reduction (“Case 1, special case”)
- (2.1): 45.10 Further properties (“partial”)
Exposé XVII
- (1.1): 53.16 Multicross and nodal singularities (“n=2, k alg. closed”)
- (5.1): 50.11 de Rham cohomology of projective space (“more general”), 37.11 Formally smooth morphisms (“more general”)
- (5.2): 43.27 Pullback for a general morphism (“partial”)
- (5.3): 42.36 Projective space bundle formula (“more general”)
Exposé XVIII
- (2.1): 31.33 Blowing up (“more general”), 37.17 Closed immersions between smooth schemes (“Smoothness of tilde X”)
- (3.1): 37.17 Closed immersions between smooth schemes (“more general”)
- (5.1): 26.18 Base change in algebraic geometry (“k is a preimmersion”; “partial”)
- (5.6.8): 29.35 Smooth morphisms
- (6.1.6.1): 37.32 Bertini theorems (“Case s = 1 of 6.1.6.1”; “special case”)
Exposé XX
- (4.4): 45.3 Correspondences (“partial”)
Exposé XXI
- (1.0): 33.36 Frobenii
- (2.0): 64.18 On l-adic sheaves (“more general”)
- (5.0): 10.9 Localization (“more general”), 64.3 Frobenii (“F_x acts on G_x̄”)
Exposé XXII
- (1.2): 59.63 The Artin-Schreier sequence (“alg. closed, q=p”)
- (2.2): 26.17 Fibre products of schemes, 64.3 Frobenii (“more general”)
- (2.2.4): 64.3 Frobenii (“The element φ_q”)
- (3.3): 50.6 Two spectral sequences (“First page of (3.3.2)”), 50.7 The Hodge filtration (“more general”), 50.12 The spectral sequence for a smooth morphism (“more general”)
- (3.4): 63.12 Compactly supported cohomology (“more general”)
- (6.2): 53.9 Plane curves (“(6.2.5), special case”), 33.36 Frobenii (“(6.2.1) F_q for q = p”)
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