Abstract
We answer the question of existence of polynomial-time constant-factor approximation algorithms for the space of nonfixed dimension. We prove that, in Euclidean space the problem is solvable in polynomial time with accuracy \(\sqrt a \), where α = 2/π, and if P ≠ NP then there are no polynomial algorithms with better accuracy. It is shown that, in the case of the ℓp spaces, the problem is APX-complete if p ∈ [1, 2] and not approximable with constant accuracy if P ≠ NP and p ∈ (2,∞).
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Original Russian Text © V.V. Shenmaier, 2018, published in Diskretnyi Analiz i Issledovanie Operatsii, 2018, Vol. 25, No. 4, pp. 131–148.
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Shenmaier, V.V. Approximability of the Problem of Finding a Vector Subset with the Longest Sum. J. Appl. Ind. Math. 12, 749–758 (2018). https://doi.org/10.1134/S1990478918040154
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DOI: https://doi.org/10.1134/S1990478918040154