Section: Dissemination

Animation of the scientific community

Editorships

K. Belabas acts on the editorial board of Journal de Théorie des Nombres de Bordeaux since 2005 and of Archiv der Mathematik since 2006.

H. Cohen is an editorial board member of Journal de Théorie des Nombres de Bordeaux; he is an editor for the Springer book series Algorithms and Computations in Mathematics (ACM).

J.-M. Couveignes is associate editor of Séminaires et Congrès since 2008, of Mathematics of Computation since 2008, of London Mathematical Society Journal for Computation and Mathematics since 2009 and of Publications mathématiques de Besançon since 2010.

A. Enge is an editor of Designs, Codes and Cryptography since 2004.

Invited talks

• K, Belabas: “Théorie algébrique des nombres et calcul formel” at Journées Nationales de Calcul Formel, Luminy, November 2011

• J.-M. Couveignes: “The geometry of flex tangents to a cubic curve and its parameterizations” at Elliptic Curve Cryptography – ECC 2011, Nancy, September 2011

• A. Enge: “Algorithms for complex multiplication of elliptic curves” at Coding, Cryptology and Combinatoric Designs, Singapore,, 23rd to 26th May

Conference organisation and programme committees

A. Enge acts on the scientific advisory board of the Journées Nationales de Calcul Formel.

Seminar

The following external speakers have given a presentation at the Lfant seminar, see

http://lfant.math.u-bordeaux1.fr/index.php?category=seminar

• Christophe Ritzenthaler (Marseilles): “Couplages sur les courbes d'Edwards et formules d'addition complètes”

• Martin Weimann: “Factorisation torique des polynômes bivariés”

• Vanessa Vitse (Versailles): “Attaques par recouvrement et décomposition du logarithme discret sur courbes elliptiques”

• Jérémie Le Borgne (Rennes): “Algorithmique des phi-modules pour les représentations galoisiennes $p$-adiques”

• Andy Novocin (Lyon): “L1 a new quasi-linear LLL algorithm”

• Lassina Dembelé (Warwick): “Sur la conjecture de Gross”

• Jean-François Biasse (Calgary): “Calcul du groupe de classes et des unités dans les corps de nombres”

• Peter Stevenhagen (Leiden): “Radical extensions and primitive roots”

• Michael Rubinstein (Waterloo): “Conjectures, experiments, and algorithms concerning the moments of $L(1/2,{\chi }_d)$

Research administration

K. Belabas is the head of the mathematics department of University Bordeaux 1. He also leads the computer science support service (“cellule informatique”) of the Institute of Mathematics of Bordeaux and coordinates the participation of the institute in the regional computation cluster PlaFRIM.

He is an elected member of the councils of both the math and computer science department (UFR) and the Math Institute (IMB).

J.-P. Cerri is an elected member of the scientific council of the Mathematics Institute of Bordeaux (IMB) and responsible for the bachelor programme in mathematics and informatics.

Since January 2011, J.-M. Couveignes is involved in the GDR mathématiques et entreprises and in the Agence pour les mathématiques en interaction avec l’entreprise et la société.

A. Enge is responsible for the international affairs of INRIA–Bordeaux-Sud-Ouest and a member of the COST-GTRI, the INRIA body responsible for evaluating international partnerships.