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DGModuleMap -- The class of morphisms of DG modules over a common DG algebra

Description

A DGModuleMap encodes an A-linear chain map between two DGModules sharing the same underlying DG algebra A. Create one via dgModuleMap. See Basic operations on DG Module Maps for a guided tour.

See also

Functions and methods returning an object of class DGModuleMap:

  • dgModuleMap -- Construct a DGModuleMap from a matrix or from a list of image Vectors
  • identityDGModuleMap -- The identity DGModuleMap on a DG module
  • liftToDGModuleMap -- Lift an image of hom-degree-0 generators to a full DGModuleMap
  • zeroDGModuleMap -- The zero DGModuleMap between two DG modules over a common algebra

Methods that use an object of class DGModuleMap:

  • - DGModuleMap (missing documentation)
  • cokernel(DGModuleMap) -- Cokernel of a DG module map as a DG quotient module of its target
  • degree(DGModuleMap) (missing documentation)
  • DGModuleMap * DGModuleMap (missing documentation)
  • DGModuleMap * Number (missing documentation)
  • DGModuleMap * QQ (missing documentation)
  • DGModuleMap * RingElement (missing documentation)
  • DGModuleMap * ZZ (missing documentation)
  • DGModuleMap ** DGModuleMap -- Tensor product of DG module maps
  • DGModuleMap ** Ring -- Base change of a DG module map along a ring map
  • DGModuleMap + DGModuleMap (missing documentation)
  • DGModuleMap - DGModuleMap (missing documentation)
  • DGModuleMap == DGModuleMap -- Elementary predicates and constructors for DGModuleMaps
  • isHomogeneous(DGModuleMap) -- see DGModuleMap == DGModuleMap -- Elementary predicates and constructors for DGModuleMaps
  • isQuasiIsomorphism(DGModuleMap) -- see DGModuleMap == DGModuleMap -- Elementary predicates and constructors for DGModuleMaps
  • DGModuleMap == ZZ (missing documentation)
  • DGModuleMap Vector (missing documentation)
  • HH DGModuleMap -- The induced map on graded homology modules over HH(A)
  • homology(DGModuleMap,ZZ) -- The induced map on degree-n homology of a DG module map
  • image(DGModuleMap) -- Image of a DG module map as a DG submodule of its target
  • isInjective(DGModuleMap) (missing documentation)
  • isIsomorphism(DGModuleMap) (missing documentation)
  • isSurjective(DGModuleMap) (missing documentation)
  • isWellDefined(DGModuleMap) -- Check that a DG module map has correct structure and is a chain map
  • kernel(DGModuleMap) -- Kernel of a DG module map as a DG submodule of its source
  • net(DGModuleMap) (missing documentation)
  • Number * DGModuleMap (missing documentation)
  • minimalPresentation(DGModuleMap) -- see prune(DGModuleMap) -- Pruning a DG module map is the identity
  • prune(DGModuleMap) -- Pruning a DG module map is the identity
  • QQ * DGModuleMap (missing documentation)
  • ring(DGModuleMap) (missing documentation)
  • RingElement * DGModuleMap (missing documentation)
  • source(DGModuleMap) (missing documentation)
  • target(DGModuleMap) (missing documentation)
  • toComplexMap(DGModuleMap) -- Export a DG module map to a ComplexMap
  • toComplexMap(DGModuleMap,ZZ) -- The per-hom-degree component of a DG module map as a matrix
  • ZZ * DGModuleMap (missing documentation)
  • ZZ == DGModuleMap (missing documentation)

For the programmer

The object DGModuleMap is a type, with ancestor classes MutableHashTable < HashTable < Thing.


The source of this document is in /build/reproducible-path/macaulay2-1.26.05+ds/M2/Macaulay2/packages/DGAlgebras/doc.m2:288:0.