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20022024
most citedSubstitution and -Boundedness

29 citations · 334 across the 88 of their papers we have counts for

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math.CO2024★ 5 cited

Excluding the fork and antifork

Maria Chudnovsky, Linda Cook, Paul Seymour

The fork is the tree obtained from the claw by subdividing one of its edges once, and the antifork is its complement graph. We give a complete description of all graphs t…

math.CO2023★ 1 cited

Induced subgraphs and tree decompositions XII. Grid theorem for pinched graphs

Bogdan Alecu, Maria Chudnovsky, Sepehr Hajebi +1

Given an integer , we say a graph is -pinched if does not contain an induced subgraph consisting of cycles, all going through a single common vertex…

math.CO2023

Induced subgraphs and tree decompositions X. Towards logarithmic treewidth for even-hole-free graphs

Tara Abrishami, Bogdan Alecu, Maria Chudnovsky +2

A generalized -pyramid is a graph obtained from a certain kind of tree (a subdivided star or a subdivided cubic caterpillar) and the line graph of a subdivided cubic caterpillar…

math.CO2023★ 6 cited

Tree independence number I. (Even hole, diamond, pyramid)-free graphs

Tara Abrishami, Bogdan Alecu, Maria Chudnovsky +3

The tree-independence number tree-, first defined and studied by Dallard, Milanič and Štorgel, is a variant of treewidth tailored to solving the maximum independent set problem.…

math.CO2023

Induced subgraphs and tree decompositions IX. Grid theorem for perforated graphs

Bogdan Alecu, Maria Chudnovsky, Sepehr Hajebi +1

The celebrated Erdős-Pósa Theorem, in one formulation, asserts that for every , graphs with no subgraph (or equivalently, minor) isomorphic to the disjoint union of cy…

math.CO2023

Even pairs in Berge graphs with no balanced skew-partitions

Tara Abrishami, Maria Chudnovsky, Yaqian Tang

Let be a Berge graph that has no odd prism and no antihole of length at least six as an induced subgraph. We show that every such graph with no balanced skew-partition is e…