<p>A graph denoted by is a pair of where non-empty set vertices in G, and E edges G. In theory, there are various types graphs including star graphs, cycle graph, wheel graph. Graph operations on two or more can produce new graphs. Amalgamation one the Suppose connected amalgamating 1 2 joining obtained joins vertex into , common resulting from while edge combining g, g side (

the fact that the properties of a molecule are tightly connected to its structural  characteristics  is one of the fundamental concepts in chemistry. in this connection,  graph theory has been successfully applied in developing some relationships between topological indices and some thermodynamic properties. so ,  a novel method for computing the new descriptors to construct a quantitative rela...

Define a graph GT (n) with one node for each triangulation of a convex n-gon. Place an edge between each pair of nodes that differ by a single flip: two triangles forming a quadrilateral are exchanged for the other pair of triangles forming the same quadrilateral. In this paper we introduce a tree of all triangulations of polygons with any number of vertices which gives a unified framework in w...