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Barron Space Representations for Elliptic PDEs with Homogeneous Boundary Conditions

Published: August 11, 2025 | arXiv ID: 2508.07559v1

By: Ziang Chen, Liqiang Huang

Potential Business Impact:

Lets computers solve hard math problems faster.

We study the approximation complexity of high-dimensional second-order elliptic PDEs with homogeneous boundary conditions on the unit hypercube, within the framework of Barron spaces. Under the assumption that the coefficients belong to suitably defined Barron spaces, we prove that the solution can be efficiently approximated by two-layer neural networks, circumventing the curse of dimensionality. Our results demonstrate the expressive power of shallow networks in capturing high-dimensional PDE solutions under appropriate structural assumptions.

Page Count
40 pages

Category
Mathematics:
Numerical Analysis (Math)