On the two-dimensional hyperbolic stochastic sine-Gordon equation

Tadahiro Oh, Tristan Robert, Philippe Sosoe, Yuzhao Wang

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4 Citations (Scopus)
179 Downloads (Pure)

Abstract

We study the two-dimensional stochastic sine-Gordon equation (SSG) in the hyperbolic setting. In particular, by introducing a suitable time-dependent renormalization for the relevant imaginary Gaussian multiplicative chaos, we prove local well-posedness of SSG for any value of a parameter β2>0 in the nonlinearity. This exhibits sharp contrast with the parabolic case studied by Hairer and Shen (Commun Math Phys 341(3):933–989, 2016) and Chandra et al. (The dynamical sine-Gordon model in the full subcritical regime, arXiv:1808.02594 [math.PR], 2018), where the parameter is restricted to the subcritical range: 0<β2<8π. We also present a triviality result for the unrenormalized SSG.
Original languageEnglish
Pages (from-to)1–32
JournalStochastics and Partial Differential Equations: Analysis and Computations
Volume9
Issue number1
Early online date5 Feb 2020
DOIs
Publication statusPublished - Mar 2021

Bibliographical note

Funding Information:
T.O. and T.R. were supported by the European Research Council (Grant No. 637995 “ProbDynDispEq”). P.S. was partially supported by NSF Grant DMS-1811093. The authors would like to thank the anonymous referees for the helpful comments.

Publisher Copyright:
© 2020, The Author(s).

Keywords

  • Gaussian multiplicative chaos
  • Renormalization
  • Sine-Gordon equation
  • Stochastic sine-Gordon equation
  • White noise

ASJC Scopus subject areas

  • Statistics and Probability
  • Modelling and Simulation
  • Applied Mathematics

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