English

Eddy viscosity by L\'evy transport noises

Probability 2025-10-16 v1

Abstract

We consider stochastic 2D Euler equations with L2L^2-initial vorticity and driven by L\'evy transport noise in the Marcus sense. Under a suitable scaling limit of the noises, we prove that the weak solutions converge weakly to the unique solution of the deterministic 2D Navier-Stokes equation. This shows that small scale jump noises generate eddy viscosity, extending the recent studies on It\^o-Stratonovich diffusion limit to discontinuous setting.

Cite

@article{arxiv.2510.13463,
  title  = {Eddy viscosity by L\'evy transport noises},
  author = {Dejun Luo and Feifan Teng},
  journal= {arXiv preprint arXiv:2510.13463},
  year   = {2025}
}

Comments

41 pages

R2 v1 2026-07-01T06:38:47.271Z