The cyclosyntomic regulator of a number field
Number Theory
2026-02-26 v1 Algebraic Geometry
K-Theory and Homology
Abstract
We construct a q-deformation of the p-adic regulator of a number field, called the cyclosyntomic regulator, building on the Habiro ring of Garoufalidis-Scholze-Wheeler-Zagier. The key new ingredient in our construction is a refinement of Sulyma's norm maps in prismatic cohomology, which interpolate between classical powers and Frobenius maps at various prime numbers p. Furthermore, we compute the values of the cyclosyntomic regulator at units of the form , where is a root of unity.
Keywords
Cite
@article{arxiv.2602.21894,
title = {The cyclosyntomic regulator of a number field},
author = {Tess Bouis and Quentin Gazda},
journal= {arXiv preprint arXiv:2602.21894},
year = {2026}
}
Comments
29 pages