Schemes & Sheaves

Algebraic Geometry Cite
Primary: Alexander Grothendieck
Publication: Éléments de géométrie algébrique (EGA), Séminaire Henri Cartan
Year: 1960s
URL: Wikipedia — Scheme

Sheaves on spaces. Spec(R), affine schemes. Locally ringed spaces. Scheme = locally affine. Structure sheaf Oₓ.

graph TD D1["Def: Presheaf\nF: Opens→Ab"] D2["Def: Sheaf\nglue + unique"] D3["Def: Spec R\nprime ideals + topol"] D4["Def: Affine scheme\nSpec R, Õₘ"] T1["Thm: Stalk Oₓ\nlocal ring"] T2["Thm: ΓSpecR Õₘ ≅ R"] T3["Thm: Scheme\nlocally affine"] T4["Thm: Morphism\nring hom → cont map"] T5["Thm: Proj S\nprojective scheme"] D1 --> D2 D3 --> D4 D2 --> T3 D4 --> T1 D4 --> T2 D4 --> T3 T3 --> T4 T3 --> T5 classDef definition fill:#b197fc,color:#fff classDef theorem fill:#51cf66,color:#fff class D1,D2,D3,D4 definition class T1,T2,T3,T4,T5 theorem

Process Statistics

  • Nodes: 14
  • Edges: 11
  • Definitions: 4
  • Theorems: 5
Frontier: Stacks, derived schemes, non-archimedean geometry. math.AG