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The study of networks and graphs through structural properties is a massive area of research with developing significance. One of the methods used in studying structural properties is obtaining quantitative measures that encode structural data of the whole network by the real number. A large collection of numerical descriptors and associated graphs have been used to examine the whole structure of networks. In these analyses, degree-related topological indices have a significant position in theoretical chemistry and nanotechnology. Thus, the computation of degree-related indices is one of the successful topics of research. The general sum-connectivity GSC index of graph Q is described as χ ρ Q = ∑ qq ′ ∈ E Q d q + d q ′ ρ , where d q presents the degree of the vertex q in Q and ρ is a real number. The total graph T Q is a graph whose vertex set is V Q ∪ E Q , and two vertices are linked in T Q if and only if they are either adjacent or incident in Q . In this article, we study the general sum-connectivity index χ ρ Q of total graphs for different values of ρ by using Jensen’s inequality.
The study of networks and graphs through structural properties is a massive area of research with developing significance. One of the methods used in studying structural properties is obtaining quantitative measures that encode structural data of the whole network by the real number. A large collection of numerical descriptors and associated graphs have been used to examine the whole structure of networks. In these analyses, degree-related topological indices have a significant position in theoretical chemistry and nanotechnology. Thus, the computation of degree-related indices is one of the successful topics of research. The general sum-connectivity GSC index of graph Q is described as χ ρ Q = ∑ qq ′ ∈ E Q d q + d q ′ ρ , where d q presents the degree of the vertex q in Q and ρ is a real number. The total graph T Q is a graph whose vertex set is V Q ∪ E Q , and two vertices are linked in T Q if and only if they are either adjacent or incident in Q . In this article, we study the general sum-connectivity index χ ρ Q of total graphs for different values of ρ by using Jensen’s inequality.
Given a graph , the general sum-connectivity index is defined as ( ) = ∑ V∈ ( ) ( ( ) + (V)) , where ( ) (or (V)) denotes the degree of vertex (or V) in the graph and is a real number. In this paper, we obtain the sharp bounds for general sum-connectivity indices of several graph transformations, including the semitotal-point graph, semitotal-line graph, total graph, and eight distinct transformation graphs V , where , V, ∈ {+, −}.
In this paper, we find the b-chromatic number of Transformation graph G ++-for Cycle, Path and Star graph. Also we determine the b-chromatic number of Corona product of Path graph with Cycle and Path graph with Completegraph along with its structural properties.
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