Logo IMB

Bill Allombert

Logo CNRS
Bill Allombert
Ingénieur d'étude en calcul scientifique
Batiment A33 (IMB), Bureau 161
Courriel: Bill.Allombert@math.u-bordeaux1.fr
Téléphone : +33 5 40 00 21 09



I have completed a PhD in Mathematics at the University of Bordeaux I in the Laboratoire A2X. My field of research is Algorithmic Number Theory. I am now a scientific computing engineer (CNRS) at the Institut de Mathématiques de Bordeaux (UMR 5251). Formerly I was a scientific computing engineer at the Université Montpellier 2 at the I3M and LIRMM.

I work in the Cellule Informatique de l'IMB on developement of mathematical software related to number theory. I am a member of the ANR project AlgoL.

I am the primary developer of the PARI/GP number theory software package, and I am the author of the GP2C project, a translator from GP script to C, trying to use the fastest function in the PARI library for a particular computation. The manual is available here. I am responsible for the PARI/GP server and website.

I am also involved in the Debian project. Here is my page as a member of the project.


  • An Efficient Algorithm for the Computation of Galois Automorphisms Math. Comp., 73, 245, 2001, 359-375.

  • Explicit Computation of Isomorphisms Between Finite Fields , Finite Fields, 8, 2002, 332-342.

  • Théorie de Galois effective pour les corps de nombres et les corps finis. Développement du système PARI. PhD Thesis, Université Bordeaux I, 2001.

  • (with Karim Belabas) Practical Aurifeuillian factorization, J. Théor. Nombres Bordeaux 20, 2008, no. 3, 543-553

  • A new interpretor for PARI/GP, J. Théor. Nombres Bordeaux 20, 2008, no. 3, 531-541