A Murasugi decomposition for achiral alternating links
A Murasugi decomposition for achiral alternating links
We prove that an achiral alternating link can be decomposed in a strong sense as a Murasugi sum of a link and its mirror image.The proof relies on our theory of Murasugi atoms.We introduce a notion of a bond between atoms, called adjacency.This relation is expressed by a graph, the …