NP-Hardness of the Problem of Optimal Box Positioning

We consider the problem of finding a position of a <i>d</i>-dimensional box with given edge lengths that maximizes the number of enclosed points of the given finite set <inline-formula> <math display="inline"> <semantics> <mrow> <mi>P</mi> &l...

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Bibliographic Details
Main Authors: Alexei V. Galatenko, Stepan A. Nersisyan, Dmitriy N. Zhuk
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/7/8/711
Description
Summary:We consider the problem of finding a position of a <i>d</i>-dimensional box with given edge lengths that maximizes the number of enclosed points of the given finite set <inline-formula> <math display="inline"> <semantics> <mrow> <mi>P</mi> <mo>&sub;</mo> <msup> <mi mathvariant="double-struck">R</mi> <mi>d</mi> </msup> </mrow> </semantics> </math> </inline-formula>, i.e., the problem of optimal box positioning. We prove that while this problem is polynomial for fixed values of <i>d</i>, it is NP-hard in the general case. The proof is based on a polynomial reduction technique applied to the considered problem and the 3-CNF satisfiability problem.
ISSN:2227-7390