Title
Lines Pinning Lines
Abstract
A line ℓ is a transversal to a family F of convex polytopes in ℝ3 if it intersects every member of F. If, in addition, ℓ is an isolated point of the space of line transversals to F, we say that F is a pinning of ℓ. We show that any minimal pinning of a line by polytopes in ℝ3 such that no face of a polytope is coplanar with the line has size at most eight. If in addition the polytopes are pairwise disjoint, then it has size at most six.
Year
DOI
Venue
2011
10.1007/s00454-010-9288-6
Discrete & Computational Geometry
Keywords
Field
DocType
Geometric transversal,Helly-type theorem,Line geometry
Line (geometry),Topology,Combinatorics,Disjoint sets,Regular polygon,Transversal (geometry),Convex polytope,Polytope,Isolated point,Polyhedral combinatorics,Mathematics
Journal
Volume
Issue
ISSN
45
2
Discrete and Computational Geometry 45 (2011), 230-260
Citations 
PageRank 
References 
2
0.41
8
Authors
4
Name
Order
Citations
PageRank
Boris Aronov11430149.20
Otfried Cheong259460.27
Xavier Goaoc313820.76
Günter Rote41181129.29