Indexed on: 04 Aug '16Published on: 04 Aug '16Published in: Discrete Mathematics
Helly’s theorem is a classical result concerning the intersection patterns of convex sets in RdRd. Two important generalizations are the colorful version and the fractional version. Recently, Bárány et al. combined the two, obtaining a colorful fractional Helly theorem. In this paper, we give an improved version of their result.