R20.5′

Statistics

genus c	20, orientable
Schläfli formula c	{9,8}
V / F / E c	18 / 16 / 72
notes
vertex, face multiplicity c	2, 3
Petrie polygons	4, each with 36 edges
rotational symmetry group	144 elements.
full symmetry group	288 elements.
its presentation c	< r, s, t | t2, (sr)2, (st)2, (rt)2, (sr‑2)2, s8, (sr‑1s2)2, r‑9  >
C&D number c	R20.5′
The statistics marked c are from the published work of Professor Marston Conder.

Relations to other Regular Maps

Its dual is R20.5.

Its Petrie dual is N52.6′.

It can be 2-split to give R47.6′.

List of regular maps in orientable genus 20.

Other Regular Maps

General Index