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A note on the Taylor estimates of iterated paraproducts

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arxiv 2409.10817 v1 pith:ZS7YZR5J submitted 2024-09-17 math.AP math.PR

classification math.APmath.PR
keywords paraproductiteratedregularitiesanalysisarticleauthorbonycalculus
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Bony's paraproduct is one of the main tools in the theory of paracontrolled calculus. The paraproduct is usually defined via Fourier analysis, so it is not a local operator. In the previous researches [7, 8], however, the author proved that the pointwise estimate like (1.2) holds for the paraproduct and its iterated versions when the sum of the regularities is smaller than 1. The aim of this article is to extend these results for higher regularities.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A general paracontrolled ansatz for singular SPDEs

    math.PR 2026-08 conditional novelty 7.0 of 10

    A general paracontrolled ansatz built from decorated trees and iterated paraproducts gives local well-posedness and BPHZ renormalisation for a broad class of subcritical parabolic singular SPDEs.

  2. Local expansion properties of paracontrolled systems

    math.PR 2024-12 conditional novelty 7.0 of 10

    Every iterated paraproduct has local Taylor-type expansions described by one universal regularity structure, and every paracontrolled system lifts to a modelled distribution on that structure.

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