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Oriented bicyclic graphs whose skew spectral radius does not exceed 2
Let S(Gs ) be the skew-adjacency matrix of the oriented graph Gs of order n and l1;l2; ยข ยข ยข ;ln be all eigenvalues of S(Gs ). The skew-spectral radius rs(Gs ) of Gs is defined as maxfjl1j; jl2j; ยข ยข ยข ; jlnjg. In this paper, we investigate oriented โฆ