Proves 2n-2c(G) ≤ r(G,σ)+2α(G) ≤ 2n for signed graphs of order n and studies equality cases in the lower bound.
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The relation between the independence number and rank of a signed graph
Proves 2n-2c(G) ≤ r(G,σ)+2α(G) ≤ 2n for signed graphs of order n and studies equality cases in the lower bound.