English

Surface Quasi-Geostrophic Equation driven by Space-Time White Noise

Probability 2021-11-09 v1 Analysis of PDEs

Abstract

We consider the Surface Quasi-Geostrophic equation (SQG) driven by space-time white noise and show the existence of a local in time solution by applying the theory of regularity structures. A main difficulty is the presence of Riesz-transforms in the non-linearity. We show how to lift singular integral operators with a particular structure to the level of regularity structures and using this result we deduce the existence of a solution to SQG by a renormalisation procedure. The fact that the Riesz-transforms act only in the spatial variable makes it necessary to use inhomogeneous models instead of the standard ones.

Keywords

Cite

@article{arxiv.2111.04644,
  title  = {Surface Quasi-Geostrophic Equation driven by Space-Time White Noise},
  author = {Philipp Forstner and Martin Saal},
  journal= {arXiv preprint arXiv:2111.04644},
  year   = {2021}
}

Comments

32 pages

R2 v1 2026-06-24T07:30:57.712Z