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On the Number of Critical Free Contacts of a Convex Polygonal Object Moving in 2-D Polygonal Space/en-ca/on-the-number-of-critical-free-contacts-of-a-convex-polygonal-object-moving-in-2-d-polygonal-space/A101A6E6-6063-436E-8A08-834AEF1F22E8.htmlA101A6E6-6063-436E-8A08-834AEF1F22E8
On the Number of Critical Free Contacts of a Convex Polygonal Object Moving in 2-D Polygonal Space