Results 41 to 50 of about 168,009,036 (204)
No Huckel graph is hyperenergetic [PDF]
Journal of the Serbian Chemical Society, 2000 If G is a molecular graph with n vertices and if l1, l2, ..., ln are its eigenvalues, then the energy of G is equal to E(G) = |l1| + |l2|+ ... + |ln|. If E(G) > 2n 2, then G is said to be hyperenergetic.
P. R. HAMPIHOLI +4 more
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U.S. Department of Energy Strategic Plan
, 2012 The mission of the Department of Energy is to ensure America's security and prosperity by addressing its energy, environmental, and nuclear challenges through transformative science and technology solutions.
United States. Department of Energy.
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More Equienergetic Signed Graphs [PDF]
Mathematics Interdisciplinary Research, 2017 The energy of signed graph is the sum of the absolute values of the eigenvalues of its adjacency matrix. Two signed graphs are said to be equienergetic if they have same energy.
Harishchandra S. Ramane +1 more
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, 1994 This report is a companion document to the Annual Energy Outlook 1994 (AEO94), (DOE/EIA-0383(94)), released in Jan. 1994. Part I of the Supplement presents the key quantitative assumptions underlying the AEO94 projections, responding to requests by ...
United States. Department of Energy. Energy Information Administration
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Smarandache-Zagreb Index on Three Graph Operators [PDF]
, 2010 Many researchers have studied several operators on a connected graph in which one make an attempt on subdivision of its edges. In this paper, we show how the Zagreb indices, a particular case of Smarandache-Zagreb index of a graph changes with these ...
Ranjini, P.S., Lokesha, V.
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Graph Energies of Egocentric Networks and Their Correlation with Vertex Centrality Measures
Entropy, 2018 Graph energy is the energy of the matrix representation of the graph, where the energy of a matrix is the sum of singular values of the matrix. Depending on the definition of a matrix, one can contemplate graph energy, Randić energy, Laplacian energy ...
Mikołaj Morzy, Tomasz Kajdanowicz
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A review of the Energy Productivity Center's Least-Cost Energy Strategy study [PDF]
, 1981 The Mellon Institute's Energy Productivity Center (EPC) has recently completed a study asking the question, "How would the nation have provided energy services in 1978 if its capital stock had een reconfigured to be optimal for actual 1978 energy prices?"
Manove, Michael +2 more
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A survey of two-dimensional graph layout techniques for information visualisation [PDF]
, 2012 Many algorithms for graph layout have been devised over the last 30 years spanning both the graph drawing and information visualisation communities. This article first reviews the advances made in the field of graph drawing that have then often been ...
Vickers, Paul, Gibson, Helen, Faith, Joe
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Node-attribute graph layout for small-world networks [PDF]
, 2011 Small-world networks are a very commonly occurring type of graph in the real-world, which exhibit a clustered structure that is not well represented by current graph layout algorithms. In many cases we also have information about the nodes in such graphs,
Joe Faith +3 more
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The energy of graphs and matrices
Journal of Mathematical Analysis and Applications, 2007 We extend the concept of graph energy, introduced by Gutman, to matrices. We give upper and lower bounds on matrix energy extending previous results for graphs. In particular, we estimate the energy of almost all graphs.
openaire +2 more sources