R21.13′

Statistics

genus c	21, orientable
Schläfli formula c	{84,4}
V / F / E c	42 / 2 / 84
notes
vertex, face multiplicity c	2, 84
Petrie polygons	4, each with 42 edges
rotational symmetry group	168 elements.
full symmetry group	336 elements.
its presentation c	< r, s, t | t2, s4, (sr)2, (sr‑1)2, (st)2, (rt)2, r21s2r21  >
C&D number c	R21.13′
The statistics marked c are from the published work of Professor Marston Conder.

Relations to other Regular Maps

Its dual is R21.13.

Its Petrie dual is R20.1′.

It can be built by 3-splitting S7:{28,4}.
It can be built by 7-splitting S3:{12,4}.

It is the result of rectifying R21.40.

It is a member of series j.

List of regular maps in orientable genus 21.

Other Regular Maps

General Index