English

Soft bounds for local triple products and the subconvexity-QUE implication for $\mathrm{GL}_2$

Number Theory 2025-09-15 v2

Abstract

We give a soft proof of a uniform upper bound for the local factors in the triple product formula, sufficient for deducing effective and general forms of quantum unique ergodicity (QUE) from subconvexity.

Keywords

Cite

@article{arxiv.2505.13256,
  title  = {Soft bounds for local triple products and the subconvexity-QUE implication for $\mathrm{GL}_2$},
  author = {Paul D. Nelson},
  journal= {arXiv preprint arXiv:2505.13256},
  year   = {2025}
}

Comments

v2: 16 pages, minor revisions, modified title; to appear in Mathematika