Results 111 to 120 of about 222 (137)

Enumerating and indexing many-body intramolecular interactions: a graph theoretic approach. [PDF]

J Math Chem, 2015
Penfold R, Wilde PJ.
europepmc   +1 more source

The Energy of Graphs

, 2010
The topic of graph energy was first introduced by Ian Gutman in 1978 and arose as a problem in chemistry dealing with the -electron energy of a molecule.
Buggy, Laura
core  

Predictive modeling for physicochemical properties of β-lactam antibiotics through eigenvalue based topological indices and non linear regression techniques. [PDF]

Sci Rep
Yuvaraj A, Kalaimurugan G, Thamizhmaran R, Tajudeen MM, Contreras RC.   +4 more
europepmc   +1 more source

Randic energy and Randic eigenvalues

, 2015
Let G be a graph of order n, and di the degree of a vertex vi of G. The Randic ́ matrix R = (rij) of G is defined by rij = 1/ didj if the vertices vi and vj are adjacent in G and rij = 0 otherwise. The normalized signless Laplacian matrix Q is defined as
Jianfeng Wang, Xueliang Li
core  

Predictive potential of distance-related spectral graphical descriptors for structure-property modeling of thermodynamic properties of polycyclic hydrocarbons with applications. [PDF]

Sci Rep
Hayat S, Alanazi SJF, Imran M, Azeem M.
europepmc   +1 more source

Persistent Mayer Dirac. [PDF]

J Phys Complex
Suwayyid F, Wei GW.
europepmc   +1 more source

A study on normalized Laplacian, normalized cut and graph partitioning

, 2012
In the last decade important relationships between Laplacian eigenvalues and the eigenvectors of graphs and several other graph parameters were discovered.
Kahatapiti Kankanamalage Kissani Ridma, Perera
core  

Energy of line graphs

The energy of a graph is equal to the sum of the absolute values of its eigenvalues. The energy of a matrix is equal to the sum of its singular values. We establish relations between the energy of the line graph of a graph G and the energies associated ...
Gutman, I., Rojo, O., Robbiano, M., Cardoso, Domingos M., Martins, E. A., Medina, L.   +5 more
core  

On the distance signless Laplacian spectral radius and the distance signless Laplacian energy of graphs

Discrete Mathematics, Algorithms and Applications, 2018
The distance signless Laplacian spectral radius of a connected graph [Formula: see text] is the largest eigenvalue of the distance signless Laplacian matrix of [Formula: see text], defined as [Formula: see text], where [Formula: see text] is the distance matrix of [Formula: see text] and [Formula: see text] is the diagonal matrix of vertex ...
Abdollah Alhevaz, Maryam Baghipur, Somnath Paul   +2 more
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On (distance) Laplacian energy and (distance) signless Laplacian energy of graphs

Discrete Applied Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kinkar Ch Das, Mustapha Aouchiche, Pierre Hansen   +2 more
exaly   +3 more sources