How can the dual martingale help solving the primal optimal stopping problem?

Fuente: arXiv
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Hauptverfasser: Alfonsi, Aurélien, Kebaier, Ahmed, Lelong, Jérôme
Format: Preprint
Veröffentlicht: 2026
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author Alfonsi, Aurélien
Kebaier, Ahmed
Lelong, Jérôme
author_facet Alfonsi, Aurélien
Kebaier, Ahmed
Lelong, Jérôme
contents Motivated by recent results on the dual formulation of optimal stopping problems, we investigate in this short paper how the knowledge of an approximating dual martingale can improve the efficiency of primal methods. In particular, we show on numerical examples that accurate approximations of a dual martingale efficiently reduce the variance for the primal optimal stopping problem.
format Preprint
id arxiv_https___arxiv_org_abs_2602_09950
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle How can the dual martingale help solving the primal optimal stopping problem?
Alfonsi, Aurélien
Kebaier, Ahmed
Lelong, Jérôme
Computational Finance
Probability
62L15, 60G40, 91G20, 65C05
Motivated by recent results on the dual formulation of optimal stopping problems, we investigate in this short paper how the knowledge of an approximating dual martingale can improve the efficiency of primal methods. In particular, we show on numerical examples that accurate approximations of a dual martingale efficiently reduce the variance for the primal optimal stopping problem.
title How can the dual martingale help solving the primal optimal stopping problem?
topic Computational Finance
Probability
62L15, 60G40, 91G20, 65C05
url https://arxiv.org/abs/2602.09950