On the communication between cells of a cellular automaton on the penta- and heptagrids of the hyperbolic plane
Maurice Margenstern
Abstract
This contribution belongs to a combinatorial approach to hyperbolic geometry and it is aimed at possible applications to computer simulations. It is based on the splitting method which was introduced by the author and which is reminded in the second section of the paper. Then we sketchily remind the application to the classical case of the pentagrid, i.e. the tiling of the hyperbolic plane which is generated by reflections of the regular rectangular pentagon in its sides and, recursively, of its images in their sides. From this application, we derived a system of coordinates to locate the tiles, allowing an implementation of cellular automata. At the software level, cells exchange messages thanks to a new representation which improves the speed of contacts between cells. In the new setting, communications are exchanged along actual geodesics and the contribution of the cellular automaton is also linear in the coordinates of the cells.
Create a lesson
Related papers
Lunar Generalizations of the Euclidean Minimum Spanning Tree in the Plane and their Expected Costs
Ondřej Draganov, Herbert Edelsbrunner, Sophie Rosenmeier et al.
Quadratic Complexity of Voronoi Diagrams in R3 for Lines in a Single Ruling of a Regulus
Eunku Park
Sequential Euclidean tree construction with exponential memory: distributional performance and worst-case guarantees
Pedro M. M. de Castro
Computing an e-net of a closed hyperbolic surface
Vincent Delecroix, Vincent Despré, Camille Lanuel et al.
On Angle-optimization and Simplification of Degree-1 Homology Representatives
Emerson G. Escolar, Yuta Shimada
Riesz Energy Subset Selection in the Euclidean Plane is NP-Hard: A Reduction from the Ising Model on Planar Cubic Graphs
Michael Emmerich