Abstract
A set of vertical bars planted on given points of a horizontal line defines a fence composed of the quadrilaterals bounded by successive bars. A set of bars in the plane, each having one endpoint at the origin, defines an umbrella composed of the triangles bounded by successive bars. Given a collection of bars, we study how to use them to build the fence or the umbrella of maximum total area. We present optimal algorithms for these constructions. The problems introduced in this paper are related to the Geometric Knapsack problems (Arkin et al. in Algorithmica 10:399–427, 1993) and the Rearrangement Inequality (Wayne in Scripta Math 12(2):164–169, 1946).
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References
Angell D (2003) Rearrangement inequalities. Parabola 39(1):441
Arkin EM, Khuller S, Mitchell JSB (1993) Geometric knapsack problems. Algorithimica 10:399–427
Ben-Or M (1983) Lower bounds for algebraic computation trees. In: Proceedings of the 15th annual ACM symposium on theory of computing, STOC ’83, pp. 80–86, New York, NY, USA, 1983. ACM
Cabello S, Díaz-Báñez JM, Seara C, Sellares JA, Urrutia J, Ventura I (2008) Covering point sets with two disjoint disks or squares. Comput Geom 40(3):195–206
Church R, Velle CR (1974) The maximal covering location problem. Papers Reg Sci 32(1):101–118
Church RL (1984) The planar maximal covering location problem. Journal of Regional Science 24(2):185–201
Dickerson M, Scharstein D (1998) Optimal placement of convex polygons to maximize point containment. Comput Geom 11(1):1–16
Drezner Z, Hamacher HW (2004) Facility location: applications and theory. Springer, Berlin
Drezner Z, Wesolowsky GO (1994) Finding the circle or rectangle containing the minimum weight of points. Locat Sci 2:83–90
Martello S, Toth P (1990) Knapsack problems: algorithms and computer implementations. Wiley, Chichester
Plastria F (2002) Continuous covering location problems. Facility location: applications and theory, vol 1. Springer, Berlin
Wayne A (1946) Inequalities and inversions of order. Scr Math 12(2):164–169
Acknowledgments
S. Bereg partially supported by Project FEDER MEC MTM2009-08652. J. M. Díaz-Báñez partially supported by Project FEDER MEC MTM2009-08652 and ESF EUROCORES programme EuroGIGA - ComPoSe IP04 - MICINN Project EUI-EURC-2011-4306. D. Flores-Peñaloza partially supported by Grants 168277 (CONACyT, Mexico) and IA102513 (PAPIIT, UNAM, Mexico). S. Langerman Maître de Recherches du F.R.S.-FNRS. P. Pérez-Lantero supported by Project CONICYT FONDECYT/Iniciación 11110069 (Chile), and Millennium Nucleus Information and Coordination in Networks ICM/FIC P10- 024F, Mideplan (Chile). J. Urrutia partially supported by project FEDER MEC MTM2009-08652.
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Bereg, S., Díaz-Báñez, J.M., Flores-Peñaloza, D. et al. Optimizing some constructions with bars: new geometric knapsack problems. J Comb Optim 31, 1160–1173 (2016). https://doi.org/10.1007/s10878-014-9816-z
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DOI: https://doi.org/10.1007/s10878-014-9816-z