English

Consistent maps and their associated dual representation theorems

Number Theory 2025-04-21 v4 Functional Analysis

Abstract

A 2009 article of Allcock and Vaaler examined the vector space G:=Q×/Qtors×\mathcal G := \overline{\mathbb Q}^\times/\overline{\mathbb Q}^\times_{\mathrm{tors}} over Q\mathbb Q, describing its completion with respect to the Weil height as a certain L1L^1 space. By involving an object called a consistent map, the author began efforts to establish Riesz-type representation theorems for the duals of spaces related to G\mathcal G. Specifically, we provided such results for the algebraic and continuous duals of Q×/Z×\overline{\mathbb Q}^\times/{\overline{\mathbb Z}}^\times. In the present article, we use consistent maps to provide representation theorems for the duals of locally constant function spaces on the places of Q\overline{\mathbb Q} that arise in the work of Allcock and Vaaler. We further apply our new results to recover, as a corollary, a main theorem of our previous work.

Keywords

Cite

@article{arxiv.2306.12887,
  title  = {Consistent maps and their associated dual representation theorems},
  author = {Charles L. Samuels},
  journal= {arXiv preprint arXiv:2306.12887},
  year   = {2025}
}
R2 v1 2026-06-28T11:11:55.228Z