boundary homomorphism

== English == === Noun === kth boundary homomorphism (plural boundary homomorphisms) (algebraic topology, in a simplicial chain complex) A group homomorphism on the group of simplicial k-chains induced by mapping each oriented k-simplex to a particular formal sum of its faces. (algebraic topology, in greater generality) A homomorphism that operates on the kth element in a chain complex. === Further reading === Simplicial homology on Wikipedia.Wikipedia