coboundary operator

coboundary operator

[kō′bau̇n·drē ′äp·ə‚rād·ər]
(mathematics)
If {Cn } is a sequence of Abelian groups, coboundary operators are homomorphisms {δ n } such that δ n : CnC n +1and δ n +1- δ n = 0.
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0]) be the coboundary operator defined by b[[delta].
Given the ordering of the vertices of K, we have a coboundary operator [delta] : [C.