In this article, we study a class of Art Gallery problems that are defined on a pair of convex nested polygons. Polynomial time algorithms are presented for all these problems, by reducing them to the Circle Covering problem, or by relating them to the Minimal Nested Polygon problem. Then it is shown that these problems can also be solved In polynomial time by formulating them as Integer Programs with the Circular Ones property. Finally the paper discusses how these algorithms can be efficiently implemented in parallel.

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INFORMS Journal on Computing
Computational Geometry Lab

Bhadury, J. (J.), Chandru, V. (V.), Maheshwari, A, & Chandrasekaran, R. (R.). (1997). Art gallery problems for convex nested polygons. INFORMS Journal on Computing, 9(1), 100–110. doi:10.1287/ijoc.9.1.100