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CCCG
2006
13 years 11 months ago
Spanning trees across axis-parallel segments
Abstract. Given a set P of points and a set S of pairwise disjoint axis-parallel line segments in the plane, we construct a straight line spanning tree T on P such that every segme...
Csaba D. Tóth, Michael Hoffmann
AMC
2008
88views more  AMC 2008»
13 years 9 months ago
Global convergence of a modified spectral FR conjugate gradient method
Abstract: The nonlinear conjugate gradient method is widely used in unconstrained optimization. However, the line search is very difficult or expensive sometimes. In this paper, we...
Shou-qiang Du, Yuan-yuan Chen
IEICET
2006
80views more  IEICET 2006»
13 years 9 months ago
On Reconfiguring Radial Trees
A linkage is a collection of line segments, called bars, possibly joined at their ends, called joints. Straightening a tree linkage is a continuous motion of their bars from an ini...
Yoshiyuki Kusakari