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DAM
2007
108views more  DAM 2007»
13 years 7 months ago
3D-interval-filament graphs
: Gavril [GA4] defined two new families of intersection graphs: the interval-filament graphs and the subtree-filament graphs. The complements of intervalfilament graphs are the coi...
Fanica Gavril
COMPGEOM
2010
ACM
13 years 11 months ago
Tangencies between families of disjoint regions in the plane
Let C be a family of n convex bodies in the plane, which can be decomposed into k subfamilies of pairwise disjoint sets. It is shown that the number of tangencies between the memb...
János Pach, Andrew Suk, Miroslav Treml
SMI
1999
IEEE
116views Image Analysis» more  SMI 1999»
13 years 11 months ago
Intersecting Surfaces of Special Types
We present efficient and robust algorithms for intersecting a freeform surface with a ringed surface or a ruled surface. A ringed surface is given as a one-parameter family of cir...
Myung-Soo Kim
JCT
2010
80views more  JCT 2010»
13 years 6 months ago
Shadows and intersections in vector spaces
We prove a vector space analog of a version of the Kruskal-Katona theorem due to Lov´asz. We apply this result to extend Frankl’s theorem on r-wise intersecting families to vec...
Ameera Chowdhury, Balázs Patkós
CSR
2007
Springer
14 years 1 months ago
Maximal Intersection Queries in Randomized Graph Models
Consider a family of sets and a single set, called query set. How can one quickly find a member of the family which has a maximal intersection with the query set? Strict time cons...
Benjamin Hoffmann, Yury Lifshits, Dirk Nowotka