Results 101 to 110 of about 251,801 (209)

On the Adjacency, Laplacian, and Signless Laplacian Spectrum of Coalescence of Complete Graphs

open access: yesJournal of Mathematics, 2016
Coalescence as one of the operations on a pair of graphs is significant due to its simple form of chromatic polynomial. The adjacency matrix, Laplacian matrix, and signless Laplacian matrix are common matrices usually considered for discussion under ...
S. R. Jog, Raju Kotambari
doaj   +1 more source

Beyond graph energy: Norms of graphs and matrices

open access: yesLinear Algebra and its Applications, 2016
54 pages.
openaire   +3 more sources

Graph’s Topology and Free Energy of a Spin Model on the Graph

open access: yesPhysical Review Letters, 2017
In this work we show that there is a direct relationship between a graph's topology and the free energy of a spin system on the graph. We develop a method of separating topological and enthalpic contributions to the free energy, and find that considering the topology is sufficient to qualitatively compare the free energies of different graph systems at
Choi, Jeong-Mo   +2 more
openaire   +6 more sources

The Laplacian-energy like of graphs

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Strongly Regular Graphs with Maximal Energy

open access: yes
The energy of a graph is the sum of the absolute values of the eigenvalues of its adjacency matrix. Koolen and Moulton have proved that the energy of a graph on n vertices is at most n(1 + √n)/2, and that equality holds if and only if the graph is ...
Haemers, W.H.
core  

Energy of binary labeled graphs [PDF]

open access: yesTransactions on Combinatorics, 2013
Let G be graph with vertex set V(G) and edge set E(G) and the set A={0,1}. A mapping is called binary vertex labeling of G and l(v) is called the label of the vertex v under l.
Pradeep G. Bhat, Sabitha D'Souza
doaj  

Energy Information Outline, 2010

open access: yes, 2010
A historical view and distribution of energy in ...

core  

Graph Entropy of Some Special Chemical Graphs

open access: yesمجلة بغداد للعلوم
Chemical graph theory plays an important role in modelling molecules, especially examining physico-chemical properties of the chemical compounds. Alkanes are one of the chemical compounds which are made up of hydrogen and carbon atoms, generally known ...
B. I. Andrew, A Anuradha
doaj   +1 more source

Stuck in the jam? CO2 emissions and energy intensity in Mexico [PDF]

open access: yes
Global emissions of greenhouse gases (GHG) have been accelerating in recent decades. Moreover, since the year 2000 global emissions have been growing far more rapidly than the worst scenarios projected by the Intergovernmental Panel on Climate Change ...
Francisco Aguayo
core  

Variations in Graph Energy: A Measure for Network Resilience

open access: yes, 2017
There are many models and metrics developed to study the resilience of networks. Eigenvalues are the roots of the characteristic polynomial for a given graph and are mathematically rigorous compared to a statistical measure such as degree distribution ...
Tristan A. Shatto   +3 more
core   +1 more source

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