The dual Cheeger-Buser inequality for graphons
arXiv:2502.15213 · doi:10.1007/s00209-026-04069-6
Abstract
We introduce the notion of bipartiteness ratio for graphons. We prove the dual Cheeger-Buser inequality for graphons, which relates the gap between 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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