Periodic Homogenization of Hamilton-Jacobi Equations for Infinite Systems of Indistinguishable Particles

Seho Park

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arXiv · 2605.22198

Periodic Homogenization of Hamilton-Jacobi Equations for Infinite Systems of Indistinguishable Particles

Seho Park

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Abstract

We study the homogenization of first-order Hamilton-Jacobi equations on an infinite-dimensional Hilbert space, motivated by systems of infinitely many indistinguishable particles on the torus. A central difficulty is that the analysis takes place in an infinite-dimensional setting, where the compactness arguments available in finite dimensions break down. The problem is further complicated by the possible nonconvexity of the Hamiltonian, which prevents the direct use of variational methods. Under suitable assumptions on the Hamiltonian and the initial data, we characterize the effective Hamiltonian through an associated cell problem and prove that the solutions converge to those of the limiting equation at rate $O(\varepsilon^{1/3})$. This yields a qualitative and quantitative homogenization result for a class of possibly nonconvex Hamilton-Jacobi equations in infinite dimensions.

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Seho Park. 2026-05-21. Periodic Homogenization of Hamilton-Jacobi Equations for Infinite Systems of Indistinguishable Particles. https://arxiv.org/abs/2605.22198

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