R20.9

Statistics

genus c20, orientable
Schläfli formula c{18,45}
V / F / E c 2 / 5 / 45
notes
vertex, face multiplicity c45, 9
Petrie polygons
9, each with 10 edges
rotational symmetry group90 elements.
full symmetry group180 elements.
its presentation c< r, s, t | t2, (rs)2, (rt)2, (st)2, sr3sr‑1, sr‑4s4  >
C&D number cR20.9
The statistics marked c are from the published work of Professor Marston Conder.

Relations to other Regular Maps

Its dual is R20.9′.

Its Petrie dual is R18.6.

List of regular maps in orientable genus 20.


Other Regular Maps

General Index

Orientable
sphere | torus | 2 | 3 | 4 | 5 | 6 |
Non-orientable
projective plane | 4 | 5 | 6 | 7 |

The image on this page is copyright © 2010 N. Wedd