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Bounds for Incidence Energy of Some Graphs [PDF]

open access: yesJournal of Applied Mathematics, 2013
Let G be a simple graph. The incidence energy (IE for short) of G is defined as the sum of the singular values of the incidence matrix. In this paper, a new upper bound for IE of graphs in terms of the maximum degree is given. Meanwhile, bounds for IE of
Weizhong Wang, Dong Yang
doaj   +4 more sources

On Laplacian-energy-like invariant and incidence energy [PDF]

open access: yesInternational Journal of Group Theory, 2015
For a simple connected graph G with n -vertices having Laplacian eigenvalues‎ ‎μ 1 ‎, ‎μ 2 ‎, ‎… ‎, ‎μ n−1 ‎, ‎μ n =0 ‎, ‎and signless Laplacian eigenvalues q 1 ‎,‎q 2 ,…‎,‎q n ‎, ‎the Laplacian-energy-like invariant(LEL ) and the incidence energy ...
Shariefuddin Pirzada , Hilal A. Ganie
doaj   +2 more sources

On the Incidence Energy of Some Toroidal Lattices [PDF]

open access: yesAbstract and Applied Analysis, 2014
The incidence energy IE(G), defined as the sum of the singular values of the incidence matrix of G, is a much studied quantity with well known applications in chemical physics.
Jia-Bao Liu, Jinde Cao, Jin Xie
doaj   +3 more sources

Calibration and measurement of X-ray personal dose equivalent with a Hp(10) ionization chamber [PDF]

open access: yesNuclear Technology and Radiation Protection, 2021
The value of the personal dose equivalent at a 10 mm depth is to characterize the energy deposition of strong penetrating radiation in the human body and is derived by measurement of air kerma and application of conversion coefficients from the ISO ...
Xu Yang, Zhao Rui
doaj   +1 more source

Photovoltaic energy: sectoral legislation and the solar incidence evaluation for the municipalities of Paraná

open access: yesEconomia & Região, 2021
This study aims to identify the regions with the most significant potential for implementing new plants and photovoltaic energy consumer units. In addition to these, verify the real and potential solar incidence, and identify remote self-consumption and ...
Emerson Zonel Inácio da Silva   +2 more
doaj   +1 more source

Economic growth and air quality influences on energy sources depletion, forest sources and health in MENA

open access: yesEnvironmental Challenges, 2021
This study aimed to investigate the relationship between energy-resource depletion, health and the Environmental Kuznets Curve (EKC) hypothesis in the panel for the Middle East and North Africa (MENA) countries over 2005-2017 period. To sturdy inferences,
Hamid Amirnejad   +2 more
doaj   +1 more source

Energy dissipation and scattering angle distribution analysis of the classical trajectory calculations of methane scattering from a Ni(111) surface [PDF]

open access: yes, 2001
We present classical trajectory calculations of the rotational vibrational scattering of a non-rigid methane molecule from a Ni(111) surface. Energy dissipation and scattering angles have been studied as a function of the translational kinetic energy ...
Jansen, A. P. J.   +2 more
core   +9 more sources

On the Boundary of Incidence Energy and Its Extremum Structure of Tricycle Graphs

open access: yesFrontiers in Physics, 2020
With the wide application of graph theory in circuit layout, signal flow chart and power system, more and more attention has been paid to the network topology analysis method of graph theory.
Hongyan Lu, Zhongxun Zhu
doaj   +1 more source

On the maximum ABC index of bipartite graphs without pendent vertices

open access: yesOpen Chemistry, 2020
For a simple graph G, the atom–bond connectivity index (ABC) of G is defined as ABC(G) = ∑uv∈ E(G)d(u)+d(v)−2d(u)d(v), $\sum_{uv\in{}E(G)} \sqrt{\frac{d(u)+d(v)-2}{d(u)d(v)}},$where d(v) denotes the degree of vertex v of G.
Shao Zehui   +4 more
doaj   +1 more source

(Generalized) Incidence and Laplacian-Like Energies

open access: yesJournal of Mathematics, 2023
In this study, for graph Γ with r connected components (also for connected nonbipartite and connected bipartite graphs) and a real number
A. Dılek Maden, M. T. Rahim
openaire   +2 more sources

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