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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2025 Volume 65, Number 3, Pages 347–363 (Mi zvmmf11941)

Optimal control

Error analysis of numerical methods for optimization problems

A. V. Chernovab, A. G. Birjukovab, A. M. Lisachenkob, Yu. G. Chernovac

a Moscow Institute of physics and Technology, 141701, Dolgoprudny, Russia
b Federal Research Center "Computer Science and Control" of Russian Academy of Sciences, 119333, Moscow, Russia
c Lomonosov Moscow State University, 119991, Moscow, Russia

Abstract: The article discusses methods for constructing solution error estimates in optimization problems, which fall into two categories: theoretical and numerical. Theoretical estimates are based on convergence analysis and are mainly useful for qualitative insights, while numerical estimates provide explicit values but are limited to certain methods. The paper introduces two new numerical error estimation methods for a broad range of optimization problems. The first method uses a three-point scheme to derive an exact error estimate from a decreasing sequence of objective function values. The second method, called the rounding method, estimates the error by tracking the increase in significant digits of the solution as iterations progress. Numerical experiments are provided to support these methods.

Key words: solution error estimates, upper and lower error estimates, exact estimates, three-point scheme, rounding method.

UDC: 517.977

Received: 06.11.2024
Accepted: 06.11.2024

DOI: 10.31857/S0044466925030099


 English version:
Computational Mathematics and Mathematical Physics, 2025, 65:3, 486–502

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© Steklov Math. Inst. of RAS, 2025