Convex sets in graphs, II. Minimal path convexity
Journal of Combinatorial Theory Series A
Discrete Applied Mathematics
On the radon number for p3 convexity
LATIN'12 Proceedings of the 10th Latin American international conference on Theoretical Informatics
Characterization and recognition of Radon-independent sets in split graphs
Information Processing Letters
On the Carathéodory number of interval and graph convexities
Theoretical Computer Science
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In the context of two-path convexity, we study the rank, Helly number, Radon number, Caratheodory number, and hull number for multipartite tournaments. We show the maximum Caratheodory number of a multipartite tournament is 3. We then derive tight upper bounds for rank in both general multipartite tournaments and clone-free multipartite tournaments. We show that these same tight upper bounds hold for the Helly number, Radon number, and hull number. We classify all clone-free multipartite tournaments of maximum Helly number, Radon number, hull number, and rank.