activity
20172026
most citedIslands in minor-closed classes. I. Bounded treewidth and separators

20 citations · 21 across the 14 of their papers we have counts for

collaborators

17 papers

math.CO2026

On Borodin-Kostochka conjecture for correspondence coloring

Zdeněk Dvořák, Ross J. Kang, David Mikšaník

Borodin and Kostochka in 1977 conjectured that if a graph has maximum degree and its clique number satisfies , then its chromatic number satisfies $…

math.CO2026

Characterization of sparse monotone graph classes with bounded domination-to-2-independence ratio

Marthe Bonamy, Zdeněk Dvořák, Lukas Michel +1

We give an exact characterization of monotone graph classes C with bounded average degree that satisfy the following property: The domination number of every graph from C is bounde…

math.CO2025

Open problems of the 33rd Workshop on Cycles and Colourings

János Barát, Zdeněk Dvořák, Penny Haxell +6

Since its beginnings, every Cycles and Colourings workshop holds one or two open problem sessions; this document contains the problems (together with notes regarding the current st…

math.CO2025

Improved Decomposition Bounds for Partition Polytopes and Odd-Covers

Steffen Borgwardt, Zdeněk Dvořák, Bryce Frederickson +2

The assignments of a set of items into clusters of prescribed sizes can be encoded as the vertices of the partition polytope . W…

math.CO2025

On a conjecture concerning 4-coloring of graphs with one crossing

Zdeněk Dvořák, Bernard Lidický, Bojan Mohar

We conjecture that every graph of minimum degree five with no separating triangles and drawn in the plane with one crossing is 4-colorable. In this paper, we use computer enumerati…

math.CO2025

Lollipops, dense cycles and chords

Zdeněk Dvořák, Beatriz Martins, Stéphan Thomassé +1

In 1980, Gupta, Kahn and Robertson proved that every graph with minimum degree at least contains a cycle containing at least vertices each having at least $…