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20212025
most citedBurling graphs revisited, part I: New characterizations

6 citations · 9 across the 7 of their papers we have counts for

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math.CO2025

Noncommutative properties of 0-hyperbolic graphs

Amaury Freslon, Paul Meunier, Pegah Pournajafi

We study several noncommutative properties of 0-hyperbolic graphs. In particular, we prove that 0-hyperbolicity is preserved under quantum isomorphism. We also compute the quantum…

math.CO2025

Block structures of graphs and quantum isomorphism

Amaury Freslon, Paul Meunier, Pegah Pournajafi

We prove that for every pair of quantum isomorphic graphs, their block trees and their block graphs are isomorphic, and that such an isomorphism can be chosen so that the correspon…

math.CO2022

Burling graphs as intersection graphs

Pegah Pournajafi

For a subset of , -graphs are the intersection graphs of specific transformations of . The class of Burling graphs is a class of triangle-free graphs w…

math.CO2021★ 2 cited

Burling graphs revisited, part III: Applications to -boundedness

Pegah Pournajafi, Nicolas Trotignon

The Burling sequence is a sequence of triangle-free graphs of unbounded chromatic number. The class of Burling graphs consists of all the induced subgraphs of the graphs of this se…

math.CO2021

Burling graphs revisited, part II: Structure

Pegah Pournajafi, Nicolas Trotignon

The Burling sequence is a sequence of triangle-free graphs of increasing chromatic number. Any graph which is an induced subgraph of a graph in this sequence is called a Burling gr…

math.CO2021★ 6 cited

Burling graphs revisited, part I: New characterizations

Pegah Pournajafi, Nicolas Trotignon

The Burling sequence is a sequence of triangle-free graphs of increasing chromatic number. Each of them is isomorphic to the intersection graph of a set of axis-parallel boxes in $…