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Macaulay2 website
Complexes
::
Working with Tor
Working with Tor -- information about functorial properties
Tor_ZZ(Module,Module)
-- compute a Tor module
Tor_ZZ(Module,Matrix)
Tor_ZZ(Matrix,Module)
tensor(Complex,Complex)
-- tensor product of complexes
tensor(ComplexMap,ComplexMap)
-- the map of complexes between tensor complexes
tensorCommutativity(Complex,Complex)
-- make the canonical isomorphism arising from commutativity
tensorAssociativity(Complex,Complex,Complex)
-- make the canonical isomorphism arising from associativity
torSymmetry(ZZ,Module,Module)
-- makes the canonical isomorphism realizing the symmetry of Tor
connectingTorMap
-- makes the connecting maps in Tor
See also
Making chain complexes
-- information about the basic constructors
Making maps between chain complexes
-- information about the basic constructors
Basic invariants and properties
-- information about accessing basic features
Working with Ext
-- information about functorial properties
Towards computing in the derived category