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Weak Universality of the Dynamical Φ34 Model on the Whole Space

  • Rongchan Zhu
  • , Xiangchan Zhu*
  • *Corresponding author for this work
  • CAS - Academy of Mathematics and System Sciences

Research output: Contribution to journalArticlepeer-review

Abstract

We prove that the large scale behavior of a class of stochastic weakly nonlinear reaction-diffusion models on ℝ3 converges to the dynamical Φ34 model using paracontrolled distributions on weighted Besov spaces. Our approach depends on the delicate choice of the weight, the localization operator technique and a modified version of the maximum principle from Gubinelli and Hofmanová (Commun. Math. Phys. 368, 1201–1266, 5).

Original languageEnglish
Pages (from-to)295-330
Number of pages36
JournalPotential Analysis
Volume58
Issue number2
DOIs
Publication statusPublished - Feb 2023

Keywords

  • Paracontrolled distributions
  • Renormalisation
  • Space-time white noise
  • Weak universality
  • Φ model

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