| 11. | In the tournament digraph, the vertices correspond to the players.
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| 12. | Let be the first vertices on a shortest-path in.
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| 13. | The 92 vertices lie on the surfaces of three concentric spheres.
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| 14. | These have two types of vertices which can be alternately truncated.
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| 15. | In the planar undirected graph with 5 vertices and 6 edges.
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| 16. | Or do you want coordinates for each of the 60 vertices?
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| 17. | It can be shown seen by drawing vertices in alternate colors.
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| 18. | These shares the same vertices as the prismatic compound of antiprisms.
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| 19. | In linear programming problems, the feasible set is a vertices.
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| 20. | The other two vertices join to them to make the octahedron.
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