Primitive Zero-Symmetric Sign Pattern Matrices with Zero Diagonal Attaining the Maximum Base

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</svg> of Lemma <a href="https://static.hindawi.com/articles/jam/volume-2012/276386/figures/#lem3.1">3.1</a>.</table>

Journal of Applied Mathematics

fig4

Figure 4

Figure 4: Primitive Zero-Symmetric Sign Pattern Matrices with Zero Diagonal Attaining the Maximum Base 