Unique maximizers of spectral radius are identified among unbalanced signed bipartite graphs with no negative C4, up to switching isomorphism, for fixed bipartition sizes and order.
Zaslavsky, Signed graphs, Discrete Appl
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Survey of adjacency spectra results for signed graphs and open problems that generalize those studied for unsigned graphs.
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Unbalanced signed bipartite graphs containing no negative $C_4$ with maximum spectral radius
Unique maximizers of spectral radius are identified among unbalanced signed bipartite graphs with no negative C4, up to switching isomorphism, for fixed bipartition sizes and order.
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Open problems in the spectral theory of signed graphs
Survey of adjacency spectra results for signed graphs and open problems that generalize those studied for unsigned graphs.