O(n log n) algorithm and matching Omega(n log n) lower bound for partitioning a simple polygon's boundary into the minimum number of contiguous visible segments.
Two np-hard art-gallery problems for ortho-polygons.Mathematical Logic Quarterly, 41(2):261–267, 1995
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The Contiguous Art Gallery Problem is in {\Theta}(n log n)
O(n log n) algorithm and matching Omega(n log n) lower bound for partitioning a simple polygon's boundary into the minimum number of contiguous visible segments.