Titlebook: Distance, Symmetry, and Topology in Carbon Nanomaterials; Ali Reza Ashrafi,Mircea V. Diudea Book 2016 Springer International Publishing Sw

abreast

semiskilled

上流社會(huì)

Mathematical Aspects of Omega Polynomial,Omega polynomial Ω(.,?.) counts the . strips of all extent in .. The first and second derivatives, in .?=?1, of this polynomial enable the calculation of the recently proposed . index. In this chapter, we introduce the weighted version of omega polynomial and then we compute them for some class of graphs.

場(chǎng)所

,The Hosoya Index and the Merrifield–Simmons Index of Some Nanostructures,The Hosoya index and the Merrifield–Simmons index are two types of graph invariants used in mathematical chemistry. In this chapter, we give ex act formulas for the Hosoya index and the Merrifield–Simmons index of bridge graph and as an application of these formulas, we obtain these indices for some nano structures.

Cardiac-Output

Nullity of Graphs,The nullity of a graph is defined as the multiplicity of the eigenvalue zero of graph . which is named the nullity of . denoted by .(.). In this chapter we investigate the nullity of some family of graphs.

vocation

晚間

Carbon Materials: Chemistry and Physicshttp://image.papertrans.cn/e/image/281673.jpg