A shuffle-exchange graph is a nonsimple graph (due to the existence of graph loops) whose vertices are length binary strings with an edge from
to
if
1.
differs from
in its last bit, or
2.
is obtained from
by a left or right cyclic shift.
The -dimensional
shuffle-exchange graph is implemented as ShuffleExchangeGraph[n]
in the Wolfram Language package Combinatorica`
.
For ,
2, ..., the shuffle exchange graphs with self-loops removed are isomorphic to
,
,
,
..., where
is a path graph and
denotes the
th
-vertex graph in the ordering of McKay.