RT Journal Article
T1 Hyperbolic polygons and NEC groups
A1 Etayo Gordejuela, José Javier
A1 Martínez, Ernesto
AB Beardon gave a procedure for constructing a polygon with prescribed angles. For each ordered set of angles Beardon's polygon is unique up to congruence. The polygon obtained this way has an inscribed circle. It is possible to obtain by means of these polygons a fundamental region for a non-Euclidean crystallographic (NEC) group with a given signature having equal angles in each of the cycles. In [5] the minimal number of sides of a convex fundamental region of an NEC group is calculated, and regions are explicitly obtained achieving the bound.
PB Cambridge University Press
SN 0305-0041
YR 1988
FD 1988
LK https://hdl.handle.net/20.500.14352/57395
UL https://hdl.handle.net/20.500.14352/57395
LA eng
DS Docta Complutense
RD 10 abr 2025