La notion de connexité est fondamentale en théorie des graphes. Nous proposons une étude approfondie d'un récent développement dans ce domaine, en ajoutant des contraintes de matroïdes.Dans un premier temps, nous exhibons deux opérations de réduction sur les graphes connectés avec contraintes de matroïdes. Ces opérations permettent de généraliser le théorème de caractérisation de la connectivité de Menger et le théorème de packing d'arborescences d'Edmonds.Cependant, cette extension du théorème d'Edmonds ne garantie plus que les arborescences soient couvrantes. Il a été conjecturé que l'on peut toujours trouver de telles arborescences couvrantes. Nous prouvons cette conjecture dans certains cas particuliers, notamment pour les matroïdes de ...
If M is a loopless matroid in which M/vbX and M/vbY are connected and X∩Y is non-empty, then one eas...
Cette thèse traite 3 classes de problèmes liés à la connexité des graphes. En premier lieu, nous tra...
AbstractWe prove a sufficient condition for a graph G to have a matching that interconnects all the ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The bases-exchange graph of a matroid is the graph whose vertices are the bases of the matroid, and ...
International audienceEdmonds' arborescence packing theorem characterizes directed graphs that have ...
AbstractWe present an algorithm that finds the edge connectivity λ of a graph having n vectices and ...
AbstractIf M is a loopless matroid in which M/vbX and M/vbY are connected and X∩Y is non-empty, then...
AbstractWe present an algorithm that finds the edge connectivity λ of a graph having n vectices and ...
AbstractThree types of matroid connectivity, including Tutte's, are defined and shown to generalize ...
Connectivity is a fundamental tool for matroid theorists, which has become increasingly important in...
AbstractThree types of matroid connectivity, including Tutte's, are defined and shown to generalize ...
If M is a loopless matroid in which M/vbX and M/vbY are connected and X∩Y is non-empty, then one eas...
Cette thèse traite 3 classes de problèmes liés à la connexité des graphes. En premier lieu, nous tra...
AbstractWe prove a sufficient condition for a graph G to have a matching that interconnects all the ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The notion of connectivity is fundamental in graph theory. We study thoroughly a recent development ...
The bases-exchange graph of a matroid is the graph whose vertices are the bases of the matroid, and ...
International audienceEdmonds' arborescence packing theorem characterizes directed graphs that have ...
AbstractWe present an algorithm that finds the edge connectivity λ of a graph having n vectices and ...
AbstractIf M is a loopless matroid in which M/vbX and M/vbY are connected and X∩Y is non-empty, then...
AbstractWe present an algorithm that finds the edge connectivity λ of a graph having n vectices and ...
AbstractThree types of matroid connectivity, including Tutte's, are defined and shown to generalize ...
Connectivity is a fundamental tool for matroid theorists, which has become increasingly important in...
AbstractThree types of matroid connectivity, including Tutte's, are defined and shown to generalize ...
If M is a loopless matroid in which M/vbX and M/vbY are connected and X∩Y is non-empty, then one eas...
Cette thèse traite 3 classes de problèmes liés à la connexité des graphes. En premier lieu, nous tra...
AbstractWe prove a sufficient condition for a graph G to have a matching that interconnects all the ...