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On energy ordering of vertex-disjoint bicyclic sidigraphs
Sumaira Hafeez, Rashid Farooq
The energy and iota energy of signed digraphs are respectively defined as the sum of absolute values of real parts and sum of absolute values of imaginary parts of its eigenvalues.…
Strong metric dimension of generalized Jahangir graph
Rashid Farooq, Naila Mehreen
Let be a simple and connected graph with vertex set . A vertex strongly resolves two vertices if belongs to a shortest path or be…
Inverse sum indeg energy of graphs
Sumaira Hafeez, Rashid Farooq
Suppose G is an n-vertex simple graph with vertex set {v1,..., vn} and d(i), i = 1,..., n, is the degree of vertex vi in G. The ISI matrix S(G) = [sij] of G is a square matrix of o…
Extremal graphs with respect to the total-eccentricity index
Rashid Farooq, Mehar Ali Malik, Juan Rada
In a connected graph G, the distance between two vertices of G is the length of a shortest path between these vertices. The eccentricity of a vertex u in G is the largest distance…