homology -- general homology functor

homology -- general homology functor

homology(f,g) -- computes the homology module (kernel f)/(image g).
homology -- a method name available for computing expressions of the forms HH_i(X) and HH_i(M,N).

If it is intended that i be of class ZZ, M be of class A, and N be of class B, then the method can be installed with

          homology(ZZ, A, B) := opts -> (i,M,N) -> ...

See also:

HH -- general homology and cohomology functor

cohomology -- general cohomology functor

ScriptedFunctor -- the class of all scripted functors

Ways to use homology :

HH ChainComplex -- homology of a chain complex

HH ChainComplexMap

HH_ZZ Sequence

HH_ZZ ChainComplex -- homology of a chain complex

HH_ZZ ChainComplexMap -- homology of a chain complex map

homology(Matrix,Matrix) -- kernel modulo image

homology(Nothing,Sequence)

homology(Nothing,ChainComplex)

homology(Nothing,ChainComplexMap)

Optional arguments :