Abstract
In previous work, a probabilistic approach to controlling difficulties of density in hyperbolic space led to a workable notion of optimal density for packings of bodies. In this paper we extend an ergodic theorem of Nevo to provide an appropriate definition of those packings to be considered optimally dense. Examples are given to illustrate various aspects of the density problem, in particular the shift in emphasis from the analysis of individual packings to spaces of packings.
Similar content being viewed by others
References
Alekseevskij, D. V., Vinberg, E. B. and Solodovnikov, A. S.: Geometry of spaces of constant curvature, In: E. B. Vinberg (ed.), Geometry II: Spaces of Constant Curvature, Springer-Verlag, Berlin, 1993.
Benjamini, I. and Schramm, O.: Percolation in the hyperbolic plane, J. Amer. Math. Soc. 14 (2001), 487-507.
Bezdek, K.: Improving Rogers' upper bound for the density of unit ball packings via estimating the surface area of Voronoi cells from below in Euclidean d-space for all d ⩾ 8, Discrete Comput. Geom. 28 (2002), 75-106.
Böröczky, K.: Gömbkitöltések allandö görbületű terekben I, Mat. Lapok. 25 (1974), 265-306.
Böröczky, K.: Packing of spheres in spaces of constant curvature, Acta Math. Acad. Sci. Hung. 32 (1978), 243-261.
Böröczky, K. and Florian, A.: Uber die dichteste Kugelpackung in hyperbolischen Raum, Acta Math. Acad. Sci. Hung. 15 (1964), 237-245.
Bowen, L.: On the existence of completely saturated packings and completely reduced coverings, Geom. Dedicata 98 (2003), 211-226.
Bowen, L. and Radin, C.: Densest packing of equal spheres in hyperbolic space, Discrete Comput. Geom. 29 (2003), 23-39.
Fejes Tóth, L.: Uber einen geometrischen Satz, Math. Z. 46 (1940), 79-83.
Fejes Tóth, L.: On close-packings of spheres in spaces of constant curvature, Publ. Math. Debrecen 3 (1953), 158-167.
Fejes Tóth, L.: Kreisaufuellungen der hyperbolischen Ebene, Acta Math. Acad. Sci. Hung. 4 (1953), 103-110.
Fejes Tóth, L.: Kreisuberdeckungender hyperbolischen Ebene, Acta Math. Acad. Sci. Hung. 4 (1953), 111-114.
Fejes Tóth, L.: Regular Figures, Macmillan, New York, 1964.
Fejes Tóth, G. and Kuperberg, W.: Packing and covering with convex sets, In: P. Gruber and J. Wills (eds), Handbook of Convex Geometry, Vol. B, North-Holland, Amsterdam, 1993, Chapter 3.3, pp. 799-860.
Fejes Tóth, G. Kuperberg, G. and Kuperberg, W.: Highly saturated packings and reduced coverings, Monatsh. Math. 125 (1998), 127-145.
Gruber, P. and Wills, J. (eds), Handbook of Convex Geometry, North-Holland, Amsterdam, 1993.
Grünbaum, B. and Shephard, G. C.: Tilings and Patterns, Freeman, New York, 1986.
Kuperberg, G.: Notions of denseness, Geom. Topol. 4 (2000), 274-292.
Margulis, G. A. and Mozes, S.: Aperiodic tilings of the hyperbolic plane by convex polygons, Israel J. Math. 107 (1998), 319-332.
Nevo, A.: Pointwise ergodic theorems for radial averages on simple Lie groups I, Duke Math. J. 76 (1994), 113-140.
Nevo, A. and Stein, E.: Analogs of Weiner's ergodic theorems for semisimple groups I, Ann. of Math. 145 (1997), 565-595.
Penrose, R.: Pentaplexity-a class of non-periodic tilings of the plane, Eureka 39 (1978), 16-32. (Reproduced in Math. Intell. 2(1979/80) 32-37.)
Radin, C.: Miles of Tiles, Student Math. Library 1, Amer. Math. Soc., Providence, 1999.
Radin, C. and Wolff, M.: Space tilings and local isomorphism, Geom. Dedicata 42 (1992), 355-360.
Rogers, C. A.: Packing and Covering, Cambridge University Press, 1964.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bowen, L., Radin, C. Optimally Dense Packings of Hyperbolic Space. Geometriae Dedicata 104, 37–59 (2004). https://doi.org/10.1023/B:GEOM.0000022857.62695.15
Issue Date:
DOI: https://doi.org/10.1023/B:GEOM.0000022857.62695.15