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From the 3 of 16 linked papers with an AI index.

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16 papers

math.CO2026

Erdős-Pósa property of rooted tree minors

Quentin Claus, Gwenaël Joret, Clément Rambaud +1

The paper proves that for any tree T and any vertex set S in a graph G, either G contains k vertex‑disjoint T‑minors rooted in S or there is a vertex set of size O(k) whose removal…

math.CO2026

Far-apart Erdős--Pósa property of long cycles

Maria Chudnovsky, Vida Dujmović, Gwenaël Joret +4

The authors prove that for any graph, either it contains many cycles of length at least ℓ that are pairwise far apart, or a small vertex set can be removed to eliminate all such lo…

cs.DM2026

Adjacency labelling for proper minor-closed graph classes

Vida Dujmović, Cyril Gavoille, Gwenaël Joret +3

The paper proves that every proper minor‑closed class of graphs admits an adjacency labeling scheme using (1+o(1))·log₂ n bits, equivalently showing the existence of an n^{1+o(1)}‑…

math.CO2026

Erdős--Pósa property of cycles that are far apart

Vida Dujmović, Gwenaël Joret, Piotr Micek +1

We prove that there exist functions such that for all nonnegative integers and , for every graph , either contains cycles such that…

math.CO2026

Blow-up structure of graphs excluding a tree or an apex-tree as a minor

Quentin Claus, Gwenaël Joret, Clément Rambaud

We prove blow-up structure theorems for graphs excluding a tree or an apex-tree as a minor. First, we show that for every -vertex tree with and radius , and eve…

math.CO2026

Tree decompositions whose trees are subgraphs: An application of Simon's factorization

Romain Bourneuf, Gwenaël Joret, Piotr Micek +2

We show that every connected graph has a tree decomposition indexed by a tree such that is a subgraph of and the width of the tree decomposition is bounded from abo…