cohomology -- general cohomology functor

cohomology -- general cohomology functor

cohomology -- 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

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

See also:

homology -- general homology functor

HH -- general homology and cohomology functor

ScriptedFunctor -- the class of all scripted functors

Ways to use cohomology :

HH^ZZ ChainComplex -- cohomology of a chain complex

HH^ZZ ChainComplexMap -- cohomology of a chain complex map

HH^ZZ CoherentSheaf -- coherent sheaf cohomology

HH^ZZ Module -- local cohomology

HH^ZZ SumOfTwists -- coherent sheaf cohomology

Optional arguments :

cohomology(..., Degree)