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Volume 15, Issue 2
Global Solvability of Two-Dimensional Stochastic Chemotaxis-Navier-Stokes System

Fan Xu & Bin Liu

East Asian J. Appl. Math., 15 (2025), pp. 242-267.

Published online: 2025-01

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  • Abstract

This paper considers a chemotaxis model coupled a stochastic Navier-Stokes equation in two-dimensional case. In non-convex bounded domain, it is proved that the stochastic chemotaxis-Navier-Stokes system possesses at least one global martingale weak solution when the chemotactic sensitivity function $\chi$ is nonsingular. In convex bounded domain, under the conditions of $\chi$ and per capita oxygen consumption rate $h$ are appropriately relaxed (where $\chi$ allows singularity), it is proved that the system admits a unique global mild solution. Our results generalize previously known ones.

  • AMS Subject Headings

35K55, 35K20, 35R60, 60H15

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COPYRIGHT: © Global Science Press

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@Article{EAJAM-15-242, author = {Xu , Fan and Liu , Bin}, title = {Global Solvability of Two-Dimensional Stochastic Chemotaxis-Navier-Stokes System}, journal = {East Asian Journal on Applied Mathematics}, year = {2025}, volume = {15}, number = {2}, pages = {242--267}, abstract = {

This paper considers a chemotaxis model coupled a stochastic Navier-Stokes equation in two-dimensional case. In non-convex bounded domain, it is proved that the stochastic chemotaxis-Navier-Stokes system possesses at least one global martingale weak solution when the chemotactic sensitivity function $\chi$ is nonsingular. In convex bounded domain, under the conditions of $\chi$ and per capita oxygen consumption rate $h$ are appropriately relaxed (where $\chi$ allows singularity), it is proved that the system admits a unique global mild solution. Our results generalize previously known ones.

}, issn = {2079-7370}, doi = {https://doi.org/10.4208/eajam.2023-114.050224}, url = {http://global-sci.org/intro/article_detail/eajam/23749.html} }
TY - JOUR T1 - Global Solvability of Two-Dimensional Stochastic Chemotaxis-Navier-Stokes System AU - Xu , Fan AU - Liu , Bin JO - East Asian Journal on Applied Mathematics VL - 2 SP - 242 EP - 267 PY - 2025 DA - 2025/01 SN - 15 DO - http://doi.org/10.4208/eajam.2023-114.050224 UR - https://global-sci.org/intro/article_detail/eajam/23749.html KW - Stochastic, chemotaxis-Navier-Stokes system, martingale solution, mild solution. AB -

This paper considers a chemotaxis model coupled a stochastic Navier-Stokes equation in two-dimensional case. In non-convex bounded domain, it is proved that the stochastic chemotaxis-Navier-Stokes system possesses at least one global martingale weak solution when the chemotactic sensitivity function $\chi$ is nonsingular. In convex bounded domain, under the conditions of $\chi$ and per capita oxygen consumption rate $h$ are appropriately relaxed (where $\chi$ allows singularity), it is proved that the system admits a unique global mild solution. Our results generalize previously known ones.

Xu , Fan and Liu , Bin. (2025). Global Solvability of Two-Dimensional Stochastic Chemotaxis-Navier-Stokes System. East Asian Journal on Applied Mathematics. 15 (2). 242-267. doi:10.4208/eajam.2023-114.050224
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