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The impact of white noise on a supercritical bifurcation in the Swift-Hohenberg equation

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2021

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Blömker, Dirk

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Physica D: Nonlinear Phenomena. Elsevier. 2021, 415, 132742. ISSN 0167-2789. eISSN 1872-8022. Available under: doi: 10.1016/j.physd.2020.132742

Zusammenfassung

We consider the impact of additive Gaussian white noise on a supercritical pitchfork bifurcation in an unbounded domain. As an example we focus on the stochastic Swift-Hohenberg equation with polynomial nonlinearity. Here we identify the order where small noise first impacts the bifurcation. Using an approximation via modulation equations, we provide a tool to analyse how the noise influences the dynamics close to a change of stability.

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Fachgebiet (DDC)
510 Mathematik

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Swift–Hohenberg, Supercritical bifurcation, Impact of noise, Modulation equation, Amplitude equation, Averaging

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ISO 690BIANCHI, Luigi Amedeo, Dirk BLÖMKER, 2021. The impact of white noise on a supercritical bifurcation in the Swift-Hohenberg equation. In: Physica D: Nonlinear Phenomena. Elsevier. 2021, 415, 132742. ISSN 0167-2789. eISSN 1872-8022. Available under: doi: 10.1016/j.physd.2020.132742
BibTex
@article{Bianchi2021impac-52966,
  year={2021},
  doi={10.1016/j.physd.2020.132742},
  title={The impact of white noise on a supercritical bifurcation in the Swift-Hohenberg equation},
  volume={415},
  issn={0167-2789},
  journal={Physica D: Nonlinear Phenomena},
  author={Bianchi, Luigi Amedeo and Blömker, Dirk},
  note={Article Number: 132742}
}
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