Deepakshi Sharma

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A signed graph (or sigraph, in short) is an ordered pair S = (S<sup>u</sup>,&#x03C3;), where S<sup>u</sup> is a graph G = (V,E), called the underlying graph of S and &#x03C3; : E&#x2192; {+,-}is a function from the edge set E of S<sup>u</sup> into the set {+,-}, called the signature of S. A sigraph is also denoted as S = (V;E,&#x03C3;). A two path sigraph(More)
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