Characterization of line width variation
Alfred K. Wong, Antoinette F. Molless, et al.
SPIE Advanced Lithography 2000
We study a prize collecting version of the uncapacitated facility location problem and of the p-median problem. We say that the uncapacitated facility location polytope has the intersection property, if adding the extra equation that fixes the number of opened facilities does not create any fractional extreme point. We show that this property holds if and only if the graph has no fork. A fork is a particular subgraph. We give a complete description of the polytope for this class of graphs. © 2010 Elsevier B.V.
Alfred K. Wong, Antoinette F. Molless, et al.
SPIE Advanced Lithography 2000
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ISIT 2007
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IEEE International Symposium on Information Theory - Proceedings
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Photomask and Next-Generation Lithography Mask Technology 2004