TY - GEN
T1 - Piercing convex sets
AU - Alon, Noga
AU - Kleitman, Daniel J.
PY - 1992
Y1 - 1992
N2 - A family of sets has the (p,q) property if among any p members of the family some q have a nonempty intersection. It is shown that for every p ≥ q ≥ d+1 there is a c = c(p,q,d) < ∞ such that for every family F of compact, convex sets in Rd which has the (p,q) property there is a set of at most c points in Rd that intersects each member of F. This extends Helly's Theorem and settles an old problem of Hadwiger and Debrunner.
AB - A family of sets has the (p,q) property if among any p members of the family some q have a nonempty intersection. It is shown that for every p ≥ q ≥ d+1 there is a c = c(p,q,d) < ∞ such that for every family F of compact, convex sets in Rd which has the (p,q) property there is a set of at most c points in Rd that intersects each member of F. This extends Helly's Theorem and settles an old problem of Hadwiger and Debrunner.
UR - http://www.scopus.com/inward/record.url?scp=0026995270&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026995270&partnerID=8YFLogxK
U2 - 10.1145/142675.142711
DO - 10.1145/142675.142711
M3 - Conference contribution
AN - SCOPUS:0026995270
SN - 0897915178
SN - 9780897915175
T3 - Eighth Annual Symposium On Computational Geometry
SP - 157
EP - 160
BT - Eighth Annual Symposium On Computational Geometry
PB - Publ by ACM
T2 - Eighth Annual Symposium On Computational Geometry
Y2 - 10 June 1992 through 12 June 1992
ER -