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Revisiting Bourgain's probabilistic construction of solutions to the 2-$d$ cubic NLS

Analysis of PDEs 2025-06-02 v1 Probability

Abstract

In a seminal paper (1996), Bourgain proved invariance of the Gibbs measure for the defocusing cubic nonlinear Schr\"odinger equation on the two-dimensional torus by constructing local-in-time solutions in a probabilistic manner. In this note, we revisit and streamline his argument, using the random tensor estimate developed by Deng, Nahmod, and Yue (2022).

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Cite

@article{arxiv.2505.24271,
  title  = {Revisiting Bourgain's probabilistic construction of solutions to the 2-$d$ cubic NLS},
  author = {Tadahiro Oh and Yuzhao Wang},
  journal= {arXiv preprint arXiv:2505.24271},
  year   = {2025}
}

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40 pages