Results 41 to 50 of about 197,517 (218)
Limit laws of estimators for critical multi-type Galton-Watson processes [PDF]
, 2004 We consider the asymptotics of various estimators based on a large sample of branching trees from a critical multi-type Galton-Watson process, as the sample size increases to infinity.
Chi, Zhiyi
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Localization and centrality in networks
, 2014 Eigenvector centrality is a common measure of the importance of nodes in a network. Here we show that under common conditions the eigenvector centrality displays a localization transition that causes most of the weight of the centrality to concentrate on
Martin, Travis +2 more
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Eigenvectors for nonlinear maps [PDF]
Topological Methods in Nonlinear Analysis, 1993 The authors give a systematic and self-contained survey on nonlinear eigenvalue theory for mappings in Banach spaces. The presentation builds on topological degree and fixed point theory. Classes of operators considered are compact, condensing, and monotone (with respect to a cone) operators. Multivalued acyclic-valued operators are discussed as well.
Fournier, Gilles, Martelli, Mario
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Mine exogenous fire monitoring method using the fusion of infrared visual features
矿业科学学报In order to solve the problems of high false positive and false negative rates of external fire monitoring in complex mine environments, a monitoring algorithm using infrared visual feature fusion was proposed.
LI Xiaoyu +3 more
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Analytical solutions to some generalized and polynomial eigenvalue problems
Special Matrices, 2021 It is well-known that the finite difference discretization of the Laplacian eigenvalue problem −Δu = λu leads to a matrix eigenvalue problem (EVP) Ax =λx where the matrix A is Toeplitz-plus-Hankel.
Deng Quanling
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Cosmic web alignments with the shape, angular momentum and peculiar velocities of dark matter haloes [PDF]
, 2014 We study the alignment of dark matter haloes with the cosmic web characterized by the tidal and velocity shear fields. We focus on the alignment of their shape, angular momentum and peculiar velocities. We use a cosmological N-body simulation that allows
Contreras, Sergio +2 more
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Eigenvectors of Tensors—A Primer [PDF]
Acta Applicandae Mathematicae, 2018 We give an introduction to the theory and to some applications of eigenvectors of tensors (in other words, invariant one-dimensional subspaces of homogeneous polynomial maps), including a review of some concepts that are useful for their discussion. The intent is to give practitioners an overview of fundamental notions, results and techniques.
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Eigenvalues and eigenvectors of supermatrices [PDF]
Proceedings of the Japan Academy, Series A, Mathematical Sciences, 1988 Let \(\Lambda\) be a Grassmann algebra over the complex numbers, generated by a finite or infinite number of odd elements. Let \(\Lambda_ 0\) be the even part and \(\Lambda_ 1\) the odd part of \(\Lambda\). Let \(M=\left( \begin{matrix} A\quad B\\ C\quad D\end{matrix} \right)\) be an \(n\times n\) supermatrix where A and D are square with elements in \(
Kobayashi, Yuji, Nagamachi, Shigeaki
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Universal eigenvector statistics in a quantum scattering ensemble
, 2000 We calculate eigenvector statistics in an ensemble of non-Hermitian matrices describing open quantum systems [F. Haake et al., Z. Phys. B 88, 359 (1992)] in the limit of large matrix size.
B. Mehlig +16 more
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Balmer line shifts in quasars [PDF]
, 2015 We offer a broad review of Balmer line phenomenology in type 1 active galactic nuclei, briefly sum- marising luminosity and radio loudness effects, and discussing interpretation in terms of nebular physics along the 4D eigenvector 1 sequence of quasars ...
Del Olmo, A. +3 more
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