Some Super-approximation Rates of ReLU Neural Networks for Korobov Functions
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Abstract (arXiv)
This paper examines the Lp and W1p norm approximation errors of ReLU neural networks for Korobov functions. In terms of network width and depth, we derive nearly optimal super-approximation error bounds of order 2m in the Lp norm and order 2m-2 in the W1p norm, for target functions with Lp mixed derivative of order m in each direction. The analysis leverages sparse grid finite elements and the bit extraction technique. Our results improve upon classical lowest order L_∞ and H1 norm error bounds and demonstrate that the expressivity of neural networks is largely unaffected by the curse of dimensionality.
Key facts. Cited by 3 papers in the map (data through 7 Oct 2026). Builds on 22 of its 42 references that are in the map. First posted on arXiv 14 Jul 2025.
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22 of 42 references.
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Citing papers per year: 2025: 1; 2026: 2.
3 papers.