activity
20172026
most citedApproximating branchwidth on parametric extensions of planarity

5 citations · 10 across the 38 of their papers we have counts for

collaborators

50 papers

cs.DS2026

Linear-Time FPT Algorithm for Surface Disjoint Paths via Surface Cutting

Kyungjin Cho, Eunjin Oh, Sebastian Wiederrecht

We study the \textsc{-Disjoint Paths} problem on a graph embedded on a surface with bounded Euler genus. Given a graph with vertices and vertex pairs embedded on a s…

math.CO2026

The Erdős-Pósa Property for Colorful Minors

Evangelos Protopapas, Dimitrios M. Thilikos, Sebastian Wiederrecht

A colorful graph relation enhances the minor relation by merging color sets along contractions and by allowing the removal of colors; it generalizes rooted minors and models proble…

math.CO2026

A relaxation of the Bermond-Thomassen conjecture

Stéphane Bessy, Matthijs Muis, Jean-Sébastien Sereni +2

The well-known Bermond-Thomassen conjecture states that every digraph of minimum out-degree at least contains vertex-disjoint directed cycles. Despite being posed in 198…

math.CO2026

A directed flat wall theorem excluding a crossrow grid

Meike Hatzel, Ken-ichi Kawarabayashi, Stephan Kreutzer +1

The graph minor project contains the most influential results in recent undirected graph theory research. There has been progress in recent years in generalising some of their resu…

cs.DS2026

Spanning Paths and Cycles: Structural Limitations of the Irrelevant Vertex Technique

Dimitrios M. Thilikos, Sebastian Wiederrecht

The Irrelevant Vertex Technique is one of the cornerstones of algorithmic graph theory, underlying Robertson and Seymour's algorithm for \textsc{Disjoint Paths} and much of the alg…

math.CO2026

An Erdős-Pósa theorem for cycles and faces of distinct lengths

J. Pascal Gollin, Maximilian Gorsky, Meike Hatzel +6

We show that for every , every graph contains vertex-disjoint cycles of different lengths, or there exists a set with $|X| \in \mathcal…