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Finite-Time Horizon, Stopper vs. Singular-Controller Games on the Half-Line

Andrea Bovo & Tiziano De Angelis

Mathematics of Operations Research2026https://doi.org/10.1287/moor.2024.0690article
AJG 3ABDC A
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0.50

Abstract

We prove the existence of a value for two-player zero-sum stopper versus singular-controller games on a finite-time horizon when the underlying dynamics are one-dimensional, diffusive and bound to evolve in [Formula: see text]. We show that the value is the maximal solution of a variational inequality with both obstacle and gradient constraint and satisfying a Dirichlet boundary condition at [Formula: see text]. Moreover, we obtain an optimal strategy for the stopper. In order to achieve our goals, we rely on new probabilistic methods, yielding gradient bounds and equicontinuity for the solutions of penalised partial differential equations that approximate the variational inequality. Funding: Both authors received partial financial support from the European Union (NextGenerationEU) PRIN2022 [Grant 2022BEMMLZ; CUP: D53D23005780006]. T. De Angelis also received partial financial support from PRIN-PNRR2022 [Grant P20224TM7Z; CUP: D53D23018780001].

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https://doi.org/https://doi.org/10.1287/moor.2024.0690

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@article{andrea2026,
  title        = {{Finite-Time Horizon, Stopper vs. Singular-Controller Games on the Half-Line}},
  author       = {Andrea Bovo & Tiziano De Angelis},
  journal      = {Mathematics of Operations Research},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1287/moor.2024.0690},
}

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0.50

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F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

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