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PreprintarXiv licencearXiv

Wave equation with unbounded terms driven by a stochastic measure

Abstract

The one-dimensional wave equation with additive noise driven by a stochastic measure is considered. For the stochastic integrator, we assume only the sigma-additivity in probability and that |y|τ is integrable on ℝ for some τ>1/2. The class of stochastic measures includes many important cases of random processes. In the equation, the stochastic measure depends only on the spatial variable. The existence, uniqueness, and Hölder regularity of the mild solution are proved. In the previous publications, similar results were obtained for the case of bounded terms of the wave equation driven by a stochastic measure. In our paper, one term may be unbounded, satisfying the linear growth condition. Nevertheless, we prove that the solution is bounded in this case.

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BibTeX
@misc{debeliak2026wave,
  title = {{Wave equation with unbounded terms driven by a stochastic measure}},
  author = {Mykhailo Debeliak and Vadym Radchenko},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.29648},
  eprint = {2610.29648},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.29648},
}
RIS
TY  - UNPB
TI  - Wave equation with unbounded terms driven by a stochastic measure
AU  - Mykhailo Debeliak
AU  - Vadym Radchenko
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.29648
UR  - https://arxiv.org/abs/2610.29648
AB  - The one-dimensional wave equation with additive noise driven by a stochastic measure is considered. For the stochastic integrator, we assume only the sigma-additivity in probability and that |y|^τ is integrable on ℝ for some τ>1/2. The class of stochastic measures includes many important cases of random processes. In the equation, the stochastic measure depends only on the spatial variable. The existence, uniqueness, and Hölder regularity of the mild solution are proved. In the previous publications, similar results were obtained for the case of bounded terms of the wave equation driven by a stochastic measure. In our paper, one term may be unbounded, satisfying the linear growth condition. Nevertheless, we prove that the solution is bounded in this case.
ER  -