Also called a chain map. Given two chain complexes 
and 
, a chain homomorphism is given by homomorphisms 
such that
 |
where 
and 
are the boundary operators.
Chain Homomorphism
See also
Chain Complex, Chain Equivalence, Chain Homotopy, Module HomomorphismThis entry contributed by Todd Rowland
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Cite this as:
Weisstein, Eric W., with contributions by Todd Rowland. "Chain Homomorphism." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/ChainHomomorphism.html