Title
Rigid Ball-Polyhedra in Euclidean $$3$$-Space
Abstract
AbstractA ball-polyhedron is the intersection with non-empty interior of finitely many (closed) unit balls in Euclidean $$3$$-space. One can represent the boundary of a ball-polyhedron as the union of vertices, edges, and faces defined in a rather natural way. A ball-polyhedron is called a simple ball-polyhedron if at every vertex exactly three edges meet. Moreover, a ball-polyhedron is called a standard ball-polyhedron if its vertex---edge---face structure is a lattice (with respect to containment). To each edge of a ball-polyhedron, one can assign an inner dihedral angle and say that the given ball-polyhedron is locally rigid with respect to its inner dihedral angles if the vertex---edge---face structure of the ball-polyhedron and its inner dihedral angles determine the ball-polyhedron up to congruence locally. The main result of this paper is a Cauchy-type rigidity theorem for ball-polyhedra stating that any simple and standard ball-polyhedron is locally rigid with respect to its inner dihedral angles.
Year
DOI
Venue
2013
10.1007/s00454-012-9480-y
Periodicals
Keywords
Field
DocType
Ball-polyhedron,Dual ball-polyhedron,Truncated Delaunay complex,(Infinitesimally) Rigid polyhedron,Rigid ball-polyhedron
Topology,Goldberg polyhedron,Combinatorics,Vertex (geometry),Polyhedron,Ball (bearing),Flexible polyhedron,Euclidean geometry,Congruence (geometry),Dihedral angle,Mathematics
Journal
Volume
Issue
ISSN
49
2
0179-5376
Citations 
PageRank 
References 
1
0.41
4
Authors
2
Name
Order
Citations
PageRank
Károly Bezdek13914.90
Marton Naszodi2217.87