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math.CO2018
The energy of random signed graph
Shuchao Li, Shujing Wang
A signed graph is a graph with a sign attached to each of its edges, where is the underlying graph of . The energy of a signed graph is the sum of the absol…
math.CO2018★ 2 cited
Relation between the H-rank of a mixed graph and the rank of its underlying graph
Chen Chen, Shuchao Li, Minjie Zhang
Given a simple graph with vertex set and edge set , the mixed graph is obtained from by orienting some of its edges. Let $H(\widetilde…