GALaC team at LRI, Paris-Sud
GALaC is a research group at LRI, Paris-Sud University. We are focused on graph theory, combinatorics and network distributed systems algorithmic.
A global presentation of research activities in GALaC was made in 2013 for the AERES evaluation: Slides AERES 2013 and projet.
Recent Posts
(Reported to unkwown date) Programming computing media
summary: We consider computing media consisting of billions of small identical Processing Elements (PE) communicating locally in space, and with an homogeneous and isotropic distribution. Computing media can scale arbitrary in size. Thus, they represent parallel architectures whose power can grow without limit. However, programming computing media is difficult.
In ...
(Reported to unkwown date) The Bron-Kerbosch algorithm with vertex ordering is output sensitive.
summary: The Bron-Kerbosch algorithm is a well known maximal clique enumeration algorithm. So far it was unknown whether it was output sensitive or not. In this paper we partially answer this question by proving that the Bron-Kerbosch Algorithm with vertex ordering, first introduced and studied by Eppstein, Löffler and Strash ...
Polygon contact representations
En ligne
In a contact representation of a planar graph, the vertices of the graph are represented by objects in the plane with disjoint interiors and the edges correspond to touchings of these objects. The combinatorics of contact representations of planar triangulations with homothetic triangles are known to be described ...
Structures algébriques sur les partitions non croisées
En ligne
La théorie des probabilités libres utilise la combinatoire des partitions non croisées pour établir par exemple des relations entre la famille des moments et la famille des cumulants libres associée à une variable aléatoire. Nous allons décrire les opérations algébriques sous-jacentes (compositions, produits et coproduits) structurant ces relations ...
Taux de croissance des monoïdes de tresses à nombre arbitraire de générateurs
En ligne
Soit M un monoïde, muni d'une famille génératrice finie. La question de la croissance du monoïde est la suivante : pour un entier k fixé, combien d'éléments du monoïde peut-on écrire comme produit de k générateurs ? En pratique, si on note m_k cette quantité, la suite m_k ...
Translations: fr