Abstract:
Graph theory is playing a key role in applied and pure mathematics. The scope of graph theory is expanding day by day. In this thesis we compute some topological co-indices like as first and second Zagreb coindex [1, 2], First and second multiplicative Zagreb coindex [3, 4], forgotton topological coindex [5], atom bond connectivity coindex [6], geometric arithmetic coindex [7] and general Randic coindex for ∝= 1,−1, 1 2 ,− 1 2 [8] for some chemical and networking graphs like as Silicon Carbide Si2C3-I [p, q] 2D structure, Silicon Carbide Si2C3-I I[p, q] 2D Structure and Bismuth tri-Iodide. My thesis comprising of six chapters. In the 1st chapter we will define some basic definitions and literature review.
In the 2nd chapter, we will find topological co-Indices of Silicon Carbide Si2C3-I [p, q] 2D structure.
In the 3rd chapter, we will find topological co-indices of Silicon Carbide Si2C3-I [p, q] 2D structure.
In the 4th chapter, we will study topological co-Indices of Bismuth Tri-Iodide and Dexamethasone compound.
In the 5th chapter, we will present the conclusion of our thesis.
