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homology -- general homology functor


Most applications of this functor are dispatched through HH. If it is intended that i be of class ZZ, M be of class A, and N be of class B, then the method for computing HH_i(M,N) can be installed with code of the following form.
     homology(ZZ, A, B) := opts -> (i,M,N) -> ...

See also

Ways to use homology :

For the programmer

The object homology is a method function with options.