Engineering and Technology Journal

Keywords = Laplacian matrix

Number of Articles: 2
A General Formula for Characteristic Polynomials of Some Special Graphs
A General Formula for Characteristic Polynomials of Some Special Graphs

Nawras A. Alwan; Nadia M. G. Al-Saidi

Volume 34, 5B , May 2016, , Page 638-650

https://doi.org/https://doi.org/10.30684/etj.34.5B.3

Abstract
  The calculation of characteristic polynomials (Ch. Poly.) of graphs of any size, especially for the large number of vertices n is an extremely tedious problem if used the traditional ...  Read More ...
On Some Properties of Characteristics Polynomials of the Complete Graphs Kn
On Some Properties of Characteristics Polynomials of the Complete Graphs Kn

Nuha A. Rajab; Samaa F. Ibraheem; Eman H. Ouda

Volume 31, 4 B , April 2013, , Page 520-528

https://doi.org/10.30684/etj.31.4B.10

Abstract
  This paper discusses the properties of the characteristic polynomial of the complete graphs Kn, n=1, 2… respective to the adjacency matrices. Two different types of matrices, ...  Read More ...