activity
20142025
most citedUnimodular Hunting II

1 citations · 1 across the 7 of their papers we have counts for

collaborators

7 papers

math.NT2025

On a family of continued fractions in associated to infinite binary words derived from the Thue-Morse sequence

Bill Allombert, Alain Lasjaunias

For each integer n > 1, we present an element in , having a power series expansion based on an infinite word W(n), over the alphabet ${+1;-1}g and whose continued fracti…

math.NT2024★ 1 cited

Unimodular Hunting II

Bill Allombert, Gaëtan Chenevier

Pursuing ideas in a recent work of the second author, we determine the isometry classes of unimodular lattices of rank 28, as well as the isometry classes of unimodular lattices of…

math.NT2024

Group theory of cyclic cubic number fields

Daniel C. Mayer, Siham Aouissi, Bill Allombert +1

Astonishing new discoveries with quartets and octets of cyclic cubic fields sharing a common conductor are presented. Four kinds of graphs describing cubic residue conditions among…

math.NT2023

Cyclic cubic number fields with harmonically balanced capitulation

Bill Allombert, Daniel C. Mayer

It is proved that c = 689347 = 31*37*601 is the smallest conductor of a cyclic cubic number field K whose maximal unramified pro-3-extension E = F(3,infinity,K) possesses an automo…

math.NT2016

Symbolic Integration in Prime Characteristic

Bill Allombert

In this paper we study elementary extensions of differential fields in prime characteristic. In particular, we show that, in contrast to Liouville's result in characteristic zero,…

math.NT2016

On a two-valued sequence and related continued fractions in power series fields

Bill Allombert, Nicolas Brisebarre, Alain Lasjaunias

We explicitly describe a noteworthy transcendental continued fraction in the field of power series over Q, having irrationality measure equal to 3. This continued fraction is a gen…

math.NT2014

CM-Points on Straight Lines

Bill Allombert, Yuri Bilu, Amalia Pizarro-Madariaga

We prove that, with "obvious" exceptions, a CM-point (j(τ),j(τ')) cannot belong to a straight line in C^2 defined over Q. This generalizes a result of Kühne, who proved this for th…