activity
20102026
collaborators

6 papers

math.NT2026

On the Chevalley-Bass number of a field

Jean Gillibert, Florence Gillibert, Gabriele Ranieri

We give upper and lower bounds on the Chevalley-Bass number of a field of characteristic zero, whenever this quantity is well-defined. We also describe an algorithm which computes…

math.NT2018

Selmer groups are intersection of two direct summands of the adelic cohomology

Florence Gillibert, Jean Gillibert, Pierre Gillibert +1

We give a positive answer to a Conjecture by Manjul Bhargava, Daniel M. Kane, Hendrik W. Lenstra Jr., Bjorn Poonen and Eric Rains, concerning the cohomology of torsion subgroups of…

math.NT2017

On the local-global divisibility over -type varieties

Florence Gillibert, Gabriele Ranieri

Let be a number field and let be a -type variety defined over of dimension . We show that for every prime number satisfying certain condi…

math.NT2016

On the local-global divisibility over abelian varieties

Florence Gillibert, Gabriele Ranieri

Let be a prime number and let be a number field. Let be an abelian variety defined over . We prove that if ${\rm Gal} ( k ( {\mathcal{A}}[p] ) / k )…

math.NT2016

On the local-global divisibility of torsion points on elliptic curves and -type varieties

Florence Gillibert, Gabriele Ranieri

Let be a prime number and let be a number field. Let be an elliptic curve defined over . We prove that if is odd, then the local-global divisibility by any power…

math.NT2010

Points rationnels sur les quotients d'Atkin-Lehner de courbes de Shimura de discriminant

Florence Gillibert

Let and be two distinct prime numbers, and be the quotient of the Shimura curve of discriminant by the Atkin-Lehner involution . We describe a way to…