activity
20072023
most citedAn FPT 2-Approximation for Tree-Cut Decomposition

23 citations · 76 across the 30 of their papers we have counts for

collaborators

40 papers

cs.DM2023

An Overview of Universal Obstructions for Graph Parameters

Christophe Paul, Evangelos Protopapas, Dimitrios M. Thilikos

In a recent work, we introduced a parametric framework for obtaining obstruction characterizations of graph parameters with respect to a quasi-ordering on graphs. Towar…

math.CO2023★ 5 cited

Graph Parameters, Universal Obstructions, and WQO

Christophe Paul, Evangelos Protopapas, Dimitrios M. Thilikos

We establish a parametric framework for obtaining obstruction characterizations of graph parameters with respect to a quasi-ordering on graphs. At the center of this fr…

cs.DM2022

Tree-layout based graph classes: proper chordal graphs

Christophe Paul, Evangelos Protopapas

Many standard graph classes are known to be characterized by means of layouts (a permutation of its vertices) excluding some patterns. Important such graph classes are among others…

cs.DM2022

The mixed search game against an agile and visible fugitive is monotone

Guillaume Mescoff, Christophe Paul, Dimitrios M. Thilikos

We consider the mixed search game against an agile and visible fugitive. This is the variant of the classic fugitive search game on graphs where searchers may be placed to (or remo…

cs.DM2021

Edge-trewidth: Algorithmic and combinatorial properties

Loïc Magne, Christophe Paul, Abhijat Sharma +1

We introduce the graph theoretical parameter of edge treewidth. This parameter occurs in a natural way as the tree-like analogue of cutwidth or, alternatively, as an edge-analogue…

cs.DS2021

On Dasgupta's hierarchical clustering objective and its relation to other graph parameters

Svein Høgemo, Benjamin Bergougnoux, Ulrik Brandes +2

The minimum height of vertex and edge partition trees are well-studied graph parameters known as, for instance, vertex and edge ranking number. While they are NP-hard to determine…