3 papers
math.NT2026
Elements in and regulator maps of Fermat curves
François Brunault, David T. -B. G. Lilienfeldt, Yusuke Nemoto
We construct explicit elements in the group of the Fermat curves for all . The construction, which is uniform in , uses polylogarithmic complexe…
math.NT2026
Polylogarithmic motivic Chabauty-Kim for : the geometric step via resultants
David Jarossay, David T. -B. G. Lilienfeldt, Francesco Maria Saettone +2
Given a finite set of distinct primes, we propose a method to construct polylogarithmic motivic Chabauty-Kim functions for using resul…
math.NT2025
Twisted triple product root numbers and a cycle of Darmon-Rotger
David T. -B. G. Lilienfeldt
We consider an algebraic cycle on the triple product of the prime level modular curve with origins in work of Darmon and Rotger. It is defined over the quadratic extension…