3 search results - page 1 / 1 » Convex blocking and partial orders on the plane |
ORDER
2006
13 years 4 months ago
2006
Let r be a fixed positive integer. It is shown that, given any partial orders >1, . . ., >r on the same n-element set P, there exist disjoint subsets A, B P, each with at l...
DCC
2007
IEEE
14 years 4 months ago
2007
IEEE
We introduce the notion of an unrefinable decomposition of a 1-design with at most two block intersection numbers, which is a certain decomposition of the 1-designs collection of ...
CCCG
2010
13 years 6 months ago
2010
Assume that two points p and q are given and a finite ordered set of simple polygons, all in the same plane; the basic version of a touring-a-sequence-of-polygons problem (TPP) is...