A stochastic description of solutions of the Navier-Stokes equation is investigated. These solutions are represented by laws of finite dimensional semimartingales and characterized by a weak Euler-Lagrange condition. A least action principle, related to the relative entropy, is provided. Within this stochastic framework, by assuming further symmetries, the corresponding invariances are expressed by martingales, stemming from a weak Noether’s theorem.
CITATION STYLE
Lassalle, R., & Cruzeiro, A. B. (2016). Symmetries and martingales in a stochastic model for the navier-stokes equation. In Springer Proceedings in Mathematics and Statistics (Vol. 162, pp. 185–194). Springer New York LLC. https://doi.org/10.1007/978-3-319-32144-8_9
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