A stochastic variational approach to the viscous Camassa–Holm and Leray-alpha equations

Ana Bela Cruzeiro and Guoping Liu

Stochastic Processes and their Applications, 2017, vol. 127, issue 1, 1-19

Abstract: We derive the (d-dimensional) periodic incompressible and viscous Camassa–Holm equation as well as the Leray-alpha equations via stochastic variational principles. We discuss the existence of solution for these equations in the space H1 using the probabilistic characterization. The underlying Lagrangian flows are diffusion processes living in the group of diffeomorphisms of the torus. We study in detail these diffusions.

Keywords: Stochastic variational principles; Camassa–Holm equation; Leray-alpha equations (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:spapps:v:127:y:2017:i:1:p:1-19

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DOI: 10.1016/j.spa.2016.05.006

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