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COMPGEOM
1992
ACM
15 years 3 months ago
1992
ACM
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)...
CORR
1999
Springer
14 years 11 months ago
1999
Springer
It is known that for any class C closed under union and intersection, the Boolean closure of C, the Boolean hierarchy over C, and the symmetric difference hierarchy over C all are ...
VMCAI
2005
Springer
15 years 5 months ago
2005
Springer
Abstract. We present an analysis to verify abstract set specifications for programs that use object field values to determine the membership of objects in abstract sets. In our a...
TFS
2008
14 years 11 months ago
2008
In this paper, the notion termed a "nonstationary fuzzy set" is introduced, and the concept of a perturbation function that is used for generating nonstationary fuzzy set...
CORR
2010
Springer
14 years 12 months ago
2010
Springer
The problem of finding "small" sets that meet every straight-line which intersects a given convex region was initiated by Mazurkiewicz in 1916. We call such a set an opa...