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In 1943, Hadwiger conjectured that every k-chromatic graph has a K_k-minor. While the cases k = 5 and k = 6 have been shown to be equivalent to the

Soutenance de thèse / PhD. Defense [Timothée Corsini] (LaBRI) Vérifiez que vous êtes bien inscrits sur le site du [gdr-ifm-gt-graphes] : [ https:/

Exposé en anglais / Talk in english There are various parameters used to measure the complexity of posets (partially ordered sets), and many

Session problèmes ouverts. Vérifiez que vous êtes bien inscrits sur le site du [gdr-ifm-gt-graphes] : [ https://gtgraphes.labri.fr/pmwiki/pmwiki.php

In order to further develop the theory of packing trees and packing forests in an undirected graph, we extended the notion of supermodular functions

Phylogenetic networks are directed graphs used to represent evolutionary histories in the presence of events in which several entities may combine to

Nous vous invitons à amener des bonnes choses à partager, ainsi que votre tasse, assiette et ustensiles. Ce sera l'occasion de discuter de vie d

In the first paper of the Graph Minors series [JCTB ’83], Robertson and Seymour proved the Forest Minor theorem: the H-minor-free graphs have bounded

We propose a model for recoverable robust optimization with commitment. Given a combinatorial optimization problem and uncertainty about elements that

Hadwiger's conjecture, first formulated in 1943, is a vast generalization of the four-color theorem, and remains one of the central open problems in