121 citations · 538 across the 72 of their papers we have counts for
Showing 2014 · math.COShow all
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math.CO2014★ 7 cited
Signatures, lifts, and eigenvalues of graphs
Shiping Liu, Norbert Peyerimhoff, Alina Vdovina
We study the spectra of cyclic signatures of finite graphs and the corresponding cyclic lifts. Starting from a bipartite Ramanujan graph, we prove the existence of an infinite towe…
math.CO2014★ 21 cited
Cheeger constants, structural balance, and spectral clustering analysis for signed graphs
Fatihcan M. Atay, Shiping Liu
We introduce a family of multi-way Cheeger-type constants on a signed graph such that if and only if has balanced connected…