Sciweavers

166 search results - page 13 / 34
» Complexity of Some Geometric and Topological Problems
Sort
View
VIIP
2001
13 years 10 months ago
Boolean 2D Shape Similarity for Surface Reconstruction
Surface reconstruction problem (SRP) from planar samples has been traditionally approached by either (i) using local proximity between data points in adjacent layers, or by (ii) c...
Oscar E. Ruiz, Carlos A. Cadavid
COMPGEOM
2009
ACM
14 years 1 months ago
Kinetic spanners in Rd
We present a new (1 + ε)-spanner for sets of n points in Rd . Our spanner has size O(n/εd−1 ) and maximum degree O(logd n). The main advantage of our spanner is that it can be...
Mohammad Ali Abam, Mark de Berg
CAD
2006
Springer
13 years 8 months ago
Field modeling with sampled distances
Traditional mesh-based approaches to the modeling and analysis of physical fields within geometric models require some form of topological reconstruction and conversion in the mes...
Michael Freytag, Vadim Shapiro, Igor G. Tsukanov
SIGACT
2008
103views more  SIGACT 2008»
13 years 8 months ago
Computational geometry column 50
Two long-open problems have been solved: (1) every sufficiently large planar point set in general position contains the vertices of an empty hexagon; (2) every finite collection o...
Joseph O'Rourke
SIAMADS
2010
92views more  SIAMADS 2010»
13 years 3 months ago
Weak Stability Boundary and Invariant Manifolds
The concept of weak stability boundary has been successfully used in the design of several fuel efficient space missions. In this paper we give a rigorous definition of the weak st...
Edward Belbruno, Marian Gidea, Francesco Topputo