Results 21 to 30 of about 6,265,192 (292)
Combining the Two-Layers PageRank Approach with the APA Centrality in Networks with Data
ISPRS International Journal of Geo-Information, 2018 Identifying the influential nodes in complex networks is a fundamental and practical topic at the moment. In this paper, a new centrality measure for complex networks is proposed based on two contrasting models that have their common origin in the well ...
Taras Agryzkov +3 more
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On the Spectral Theory of Operator Measures
Functional Analysis and Its Applications, 2002 In the first section we provide a solution to the M. G. Krein problem about an inner description of the space $L_2(Σ,H).$ In the second section we introduce the multiplicity function for an operator measure. Making use of the description of the space $L_2(Σ,H)$ we establish the correctness of the definition and give a criterion for a spectral measure ...
Malamud, M. M., Malamud, S. M.
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Spectral Analysis of Fluoride and Nitride Phase in Secondary Aluminum Dross
, 2022 Secondary aluminum dross (SAD) is a hazardous waste produced in the electrolytic aluminum, aluminum processing, and aluminum recycling industries. The SAD produced from different processes has the characteristics of complex mineral phases and large ...
Li Shao-peng +5 more
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A review on quantum graphs: From mathematical foundations to applications [PDF]
Mathematics and Computational SciencesQuantum graphs provide a rigorous framework for modelling quantum dynamics on network-like structures, where edges represent one-dimensional wires and vertices encode interaction conditions.
Kavya Mangattu Sudheer +1 more
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MATHEMATICAL MODELING OF BIOLOGICAL INTERACTIONS: FORMALISMS AND CONTEMPORARY APPLICATIONS
Avances en Ciencias e IngenieríaThis paper introduces an advanced mathematical framework for describing biological interactions through spectral graph theory. We examine differential equations coupled with various Laplacians (classical, signless, and normalized) to address competition,
Luis Rojas, Juan Castillo, José García
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The Diagonalizable Nonnegative Inverse Eigenvalue Problem
Special Matrices, 2018 In this articlewe provide some lists of real numberswhich can be realized as the spectra of nonnegative diagonalizable matrices but which are not the spectra of nonnegative symmetric matrices.
Cronin Anthony G, Laffey Thomas J.
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Spectral theory and nonlinear problems Théorie spectrale et problèmes non-linéaires [PDF]
Surveys in Mathematics and its Applications, 2010 We present a Lie algebra theoretical schema leading to integrable systems, based on the Kostant-Kirillov coadjoint action. Many problems on Kostant-Kirillov coadjoint orbits in subalgebras of infinite dimensional Lie algebras (Kac-Moody Lie algebras)
Ahmed Lesfari
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Rocky Mountain Journal of Mathematics, 2001 Let \((M,g)\) be a closed orientable orbifold, (i.e. a \(V\) manifold). The author establishes the basic spectral theory of these singular spaces, generalizing the Sobolev embedding theorem, the Rellich theorem, and the Poincaré inequalities from the smooth setting to this more general setting. The author derives the basic properties of the spectrum of
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Karpatsʹkì Matematičnì Publìkacìï, 2018 The theoretical bases of this paper are the theory of spectral analysis and the theory of singular and regular perturbations. We obtain an approximate price of Ornstein-Uhlenbeck double barrier options with multidimensional stochastic diffusion as ...
I.V. Burtnyak, H.P. Malytska
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A survey of kernel and spectral methods for clustering [PDF]
, 2007 Clustering algorithms are a useful tool to explore data structures and have been employed in many disciplines. The focus of this paper is the partitioning clustering problem with a special interest in two recent approaches: kernel and spectral methods ...
Masulli, F. +11 more
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