Probabilistic representation and classical solutions of wave equations with complex polynomial nonlinearities

Joshua J. Y. Chan; Nicolas Privault

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arXiv · 2606.18919

Probabilistic representation and classical solutions of wave equations with complex polynomial nonlinearities

Joshua J. Y. Chan·Nicolas Privault

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Abstract

We review the probabilistic representation of solutions of wave equations with polynomial nonlinearities in spatial dimensions d=1,2,3 using stochastic branching processes. Under regularity assumptions on the initial data, we derive conditions ensuring the integrability of the corresponding Monte Carlo estimator, and the existence and smoothness of mild and classical solutions. We also present numerical results and comparisons with grid-based algorithms for the solution of nonlinear wave equations.

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Joshua J. Y. Chan, Nicolas Privault. 2026-06-17. Probabilistic representation and classical solutions of wave equations with complex polynomial nonlinearities. https://arxiv.org/abs/2606.18919

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