activity
20152025
most citedDiversity of Solutions: An Exploration Through the Lens of Fixed-Parameter Tractability Theory

29 citations · 63 across the 22 of their papers we have counts for

collaborators

30 papers

cs.CC2025

Hamiltonicity Parameterized by Mim-Width is (Indeed) Para-NP-Hard

Benjamin Bergougnoux, Lars Jaffke

We prove that Hamiltonian Path and Hamiltonian Cycle are NP-hard on graphs of linear mim-width 26, even when a linear order of the input graph with mim-width 26 is provided togethe…

cs.DS2025★ 1 cited

A Parameterized Complexity Analysis of Bounded Height Depth-first Search Trees

Lars Jaffke, Paloma T. de Lima, Wojciech Nadara +1

Computing bounded depth decompositions is a bottleneck in many applications of the treedepth parameter. The fastest known algorithm, which is due to Reidl, Rossmanith, Sánchez Vill…

cs.DS2023

Dynamic programming on bipartite tree decompositions

Lars Jaffke, Laure Morelle, Ignasi Sau +1

We revisit a graph width parameter that we dub bipartite treewidth (btw). Bipartite treewidth can be seen as a common generalization of treewidth and the odd cycle transversal numb…

cs.CC2023

Treewidth is NP-Complete on Cubic Graphs (and related results)

Hans L. Bodlaender, Édouard Bonnet, Lars Jaffke +6

In this paper, we give a very simple proof that Treewidth is NP-complete; this proof also shows NP-completeness on the class of co-bipartite graphs. We then improve the result by B…

cs.CC2022★ 1 cited

-Coloring Parameterized by Pathwidth is XNLP-complete

Lars Jaffke, Paloma T. Lima, Roohani Sharma

We show that the -Coloring problem is complete for the class XNLP when parameterized by the pathwidth of the input graph. Besides determining the precise parameterized complexit…

cs.DS2022★ 1 cited

A tight quasi-polynomial bound for Global Label Min-Cut

Lars Jaffke, Paloma T. Lima, Tomáš Masařík +2

We study a generalization of the classic Global Min-Cut problem, called Global Label Min-Cut (or sometimes Global Hedge Min-Cut): the edges of the input (multi)graph are labeled (o…