A Baseline $T\log^2 T$ Upper Bound for KL-Regularized Prime--Zero Optimal Transport

Fuente: arXiv
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Autor principal: Yang, Zhejun
Formato: Preprint
Publicado: 2025
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author Yang, Zhejun
author_facet Yang, Zhejun
contents We prove that $\mathsf{OT}_η(T)\ll T\log^2 T$ unconditionally via a band-limited test scheme with Fejér averaging. The approach normalizes $\|\widehat f\|_1=Θ(T^{-1})$ to ensure $\|h\|_1\asymp T$ and $\|\widehat h\|_1\ll 1$, and applies an $L^1$-controlled smoothed explicit formula to bound the error terms. As a result, the prime--zero optimal transport distance admits the baseline $T\log^2 T$ upper bound without additional assumptions.
format Preprint
id arxiv_https___arxiv_org_abs_2509_07329
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Baseline $T\log^2 T$ Upper Bound for KL-Regularized Prime--Zero Optimal Transport
Yang, Zhejun
Number Theory
Classical Analysis and ODEs
Probability
11M26 (Primary), 11M06 (Secondary)
We prove that $\mathsf{OT}_η(T)\ll T\log^2 T$ unconditionally via a band-limited test scheme with Fejér averaging. The approach normalizes $\|\widehat f\|_1=Θ(T^{-1})$ to ensure $\|h\|_1\asymp T$ and $\|\widehat h\|_1\ll 1$, and applies an $L^1$-controlled smoothed explicit formula to bound the error terms. As a result, the prime--zero optimal transport distance admits the baseline $T\log^2 T$ upper bound without additional assumptions.
title A Baseline $T\log^2 T$ Upper Bound for KL-Regularized Prime--Zero Optimal Transport
topic Number Theory
Classical Analysis and ODEs
Probability
11M26 (Primary), 11M06 (Secondary)
url https://arxiv.org/abs/2509.07329