A characterization of singular graphs.
Page 1 Next
Sciriha, Irene (2007)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Kirkland, S. (2004)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Israel Rocha, Vilmar Trevisan (2016)
Czechoslovak Mathematical Journal
The perturbed Laplacian matrix of a graph is defined as , where is any diagonal matrix and is a weighted adjacency matrix of . We develop a Fiedler-like theory for this matrix, leading to results that are of the same type as those obtained with the algebraic connectivity of a graph. We show a monotonicity theorem for the harmonic eigenfunction corresponding to the second smallest eigenvalue of the perturbed Laplacian matrix over the points of articulation of a graph. Furthermore, we use...
R. B. Bapat, A. K. Lal, S. Pati (2014)
Special Matrices
We supply a combinatorial description of any minor of the adjacency matrix of a graph. This description is then used to give a formula for the determinant and inverse of the adjacency matrix, A(G), of a graph G, whenever A(G) is invertible, where G is formed by replacing the edges of a tree by path bundles.
Mordechai Lewin (1982)
Mathematische Zeitschrift
Da Fonseca, C.M. (2010)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Emms, David, Hancock, Edwin R., Severini, Simone, Wilson, Richard C. (2006)
The Electronic Journal of Combinatorics [electronic only]
Nagy, Zoltán Lóránt (2011)
The Electronic Journal of Combinatorics [electronic only]
Cioaba, Sebastian M. (2010)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Sato, Iwao (2009)
The Electronic Journal of Combinatorics [electronic only]
Güngör, A.Dilek (2010)
Journal of Inequalities and Applications [electronic only]
Cvetkovic, D.M., Gutman, I. (1981)
Publications de l'Institut Mathématique. Nouvelle Série
Yu, Aimei (2010)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Kirkland, Steve (2007)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Ivan Gutman (1982)
Publications de l'Institut Mathématique
Dragoš M. Cvetković (1980)
Publications de l'Institut Mathématique
Mirko Lepović (2002)
Kragujevac Journal of Mathematics
Dahl, Geir (2003)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Hogben, Leslie (2011)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Liu, Bolian, Li, Gang (2008)
ELA. The Electronic Journal of Linear Algebra [electronic only]
Page 1 Next