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arXiv · 2502.15213

The dual Cheeger-Buser inequality for graphons

Mugdha Mahesh Pokharanakar
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Abstract

We introduce the notion of bipartiteness ratio for graphons. We prove the dual Cheeger-Buser inequality for graphons, which relates the gap between $2$ and the top of the spectrum of the Laplacian of a graphon with its bipartiteness ratio. The dual Cheeger-Buser inequality was established by Trevisan and Bauer-Jost for graphs. Our result is an analog of that for graphons.

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Mugdha Mahesh Pokharanakar. 2025-02-21. The dual Cheeger-Buser inequality for graphons. https://doi.org/10.1007/s00209-026-04069-6

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