next | previous | forward | backward | up | top | index | toc | Macaulay2 web site
Complexes :: Working with Ext

Working with Ext -- information about functorial properties

Hom and Ext

  • Ext^ZZ(Module,Module) (missing documentation) -- Ext module
  • (Ext, ZZ, Matrix, Matrix) (missing documentation)
  • (Ext, ZZ, Matrix, Module) (missing documentation)
  • (Ext, ZZ, Module, Matrix) (missing documentation)
  • Hom(Complex,Complex) -- the complex of homomorphisms between two complexes
  • Hom(ComplexMap,ComplexMap) (missing documentation)
  • homomorphism(ComplexMap) (missing documentation)
  • homomorphism'(ComplexMap) (missing documentation)

Yoneda extensions and elements of Ext

  • yonedaMap(Matrix) (missing documentation)
  • yonedaMap'(ComplexMap) (missing documentation)
  • yonedaExtension(Matrix) (missing documentation)
  • yonedaExtension'(Complex) (missing documentation)
  • yonedaProduct(Matrix,Matrix) (missing documentation)
  • yonedaProduct(Module,Module) (missing documentation)

See also