👉 "Wreathen" is a term used in the context of mathematics and combinatorics, specifically in the study of finite groups. It refers to a type of permutation group that has only two fixed points and an even number of elements. In this context, "wreathen" refers to a specific class of permutations that are commonly studied in combinatorial designs, particularly in the field of graph theory. These designs consist of a set of vertices (nodes) connected by edges (
