# Realization of abstract convex geometries by point configurations

; (2010-01)

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Article

The Edelman-Jamison problem is to characterize those abstract convex geometries that are representable by a set of points in the plane. We show that some natural modification of the Edelman-Jamison problem is equivalent to the well known NP-hard order type problem. The relation to the realizability of oriented matroids is clarified.