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arxiv: 2111.04644 · v1 · pith:QHAX2TQJnew · submitted 2021-11-08 · 🧮 math.PR · math.AP

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

classification 🧮 math.PR math.AP
keywords drivenequationexistencenoisequasi-geostrophicregularityriesz-transformssolution
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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.

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Cited by 2 Pith papers

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  1. Mixed Third-Order Flux Laws for Dual Cascade in the Stochastic SQG Equation

    math.AP 2026-06 unverdicted novelty 7.0

    Derives rigorous third-order flux laws for direct SPE and inverse Hamiltonian cascades in stochastic SQG and proves regularity obstructions to non-zero fluxes.

  2. Mixed Third-Order Flux Laws for Dual Cascade in the Stochastic SQG Equation

    math.AP 2026-06 unverdicted novelty 7.0

    Establishes rigorous third-order flux laws for direct SPE and inverse Hamiltonian cascades in stochastic SQG with Onsager obstructions under weak anomalous dissipation.