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Dominated balanced separators in wheel-induced-minor-free graphs

Published: December 13, 2025 | arXiv ID: 2512.12329v1

By: Maria Chudnovsky , J. Pascal Gollin , Matjaž Krnc and more

Gartland and Lokshtanov conjectured that every graph that excludes some planar graph as an induced minor has a balanced separator, that is, a separator whose deletion leaves every component with no more than half of the vertices of the graph, which is dominated by a bounded number of vertices. We confirm this conjecture for excluding any fixed wheel, that is, a cycle together with a universal vertex, as an induced minor.

Category
Mathematics:
Combinatorics