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20202025
most citedInduced subgraphs and tree decompositions II. Toward walls and their line graphs in graphs of bounded degree

12 citations · 76 across the 20 of their papers we have counts for

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Showing 2023 · math.COShow all

6 papers · 2 filters

math.CO2023

Graphs with no even holes and no sector wheels are the union of two chordal graphs

Tara Abrishami, Eli Berger, Maria Chudnovsky +1

Sivaraman conjectured that if is a graph with no induced even cycle then there exist sets satisfying such that the induced graph…

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…

math.CO2023★ 4 cited

Induced subgraphs and tree decompositions VIII. Excluding a forest in (theta, prism)-free graphs

Tara Abrishami, Bogdan Alecu, Maria Chudnovsky +2

Given a graph , we prove that every (theta, prism)-free graph of sufficiently large treewidth contains either a large clique or an induced subgraph isomorphic to , if and onl…