Exact SDP reformulations of adjustable robust linear programs with box uncertainties under separable quadratic decision rules via SOS representations of non-negativity

T. D. Chuong (), V. Jeyakumar (), G. Li () and D. Woolnough ()
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T. D. Chuong: Ton Duc Thang University
V. Jeyakumar: University of New South Wales
G. Li: University of New South Wales
D. Woolnough: University of New South Wales

Journal of Global Optimization, 2021, vol. 81, issue 4, No 10, 1095-1117

Abstract: Abstract In this paper we show that two-stage adjustable robust linear programs with affinely adjustable data in the face of box data uncertainties under separable quadratic decision rules admit exact semi-definite program (SDP) reformulations in the sense that they share the same optimal values and admit a one-to-one correspondence between the optimal solutions. This result allows adjustable robust solutions of these robust linear programs to be found by simply numerically solving their SDP reformulations. We achieve this result by first proving a special sum-of-squares representation of non-negativity of a separable non-convex quadratic function over box constraints. Our reformulation scheme is illustrated via numerical experiments by applying it to an inventory-production management problem with the demand uncertainty. They demonstrate that our separable quadratic decision rule method to two-stage decision-making performs better than the single-stage approach and is capable of solving the inventory production problem with a greater degree of uncertainty in the demand.

Keywords: Adjustable robust linear optimization; Semi-definite programs; Sum of squares representations; Nonconvex quadratic systems; Quadratic decision rules; 49K99; 65K10; 90C29; 90C46 (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s10898-021-01050-x

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