Results 71 to 80 of about 134,349 (198)

On the Eigenspectrum of the Gram matrix and the generalisation error of kernel PCA [PDF]

open access: yes, 2004
In this paper we analyze the relationships between the eigenvalues of the m x m Gram matrix K for a kernel k(.,.) corresponding to a sample x1,...,xm drawn from a density p(x) and the eigenvalues of the corresponding continuous eigenproblem. We bound the
Shawe-Taylor, John   +3 more
core  

Bifurcation of eigenvalues in nonlinear problems with antilinear symmetry [PDF]

open access: yes, 2016
Many physical systems can be described by nonlinear eigenvalues and bifurcation problems with a linear part that is non-selfadjoint e.g. due to the presence of loss and gain.
Tomáš Dohnal   +3 more
core   +1 more source

Metastability and small eigenvalues in Markov chains [PDF]

open access: yes, 2000
In this letter we announce rigorous results that elucidate the relation between metastable and low-lying eigenvalues in Markov chains in a much more general setting and with considerable greater precision as was so far available.
Eckhoff, Michael   +3 more
core   +1 more source

Eigenvalues of the negative Laplacian for arbitrary multiply connected domains

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
The purpose of this paper is to derive some interesting asymptotic formulae for spectra of arbitrary multiply connected bounded domains in two or three dimensions, linked with variation of positive distinct functions entering the boundary conditions ...
E. M. E. Zayed
doaj   +1 more source

On higher order eigenvalues of the spherical laplacian operator [PDF]

open access: yes, 2010
In this paper, we use the boundary measurements of normalized eigenfunctions to estimate the variation of the corresponding eigenvalues. With this form, we can show that some eigenvalues, as functions of domain, possess monotonicity as the domain varies ...
謝忠村; Shieh, Chung-tsun
core  

Renormalisation of random hierarchial systems [PDF]

open access: yes, 2003
This thesis considers a number of problems which are related to the study of random fractals. We define a class of iterations (which we call random hierarchical systems) of probability distributions, which are defined by applying a random map to a set of
Jordan, Jonathan., Jordan, Jonathan
core   +2 more sources

Universal Adjacency Matrices with Two Eigenvalues [PDF]

open access: yes
AMS Mathematics Subject Classification: 05C50.Adjacency matrix;Universal adjacency matrix;Laplacian matrix;signless Laplacian;Graph spectra;Eigenvalues;Strongly regular ...
Omidi, G.R., Haemers, W.H.
core   +1 more source

On Laplacian eigenvalues of connected graphs [PDF]

open access: yes, 2015
summary:Let $G$ be an undirected connected graph with $n$, $n\ge 3$, vertices and $m$ edges with Laplacian eigenvalues $\mu _1\ge \mu _2 \ge \cdots \ge \mu _{n-1}>\mu _n =0$. Denote by $\mu _I =\mu _{r_1}+\mu _{r_2} +\cdots +\mu _{r_k}$, $1\le k\le n-2$,
Milovanović, Emina I.   +2 more
core   +1 more source

Inverse Sturm-Liouville problems with fixed boundary conditions

open access: yesElectronic Journal of Differential Equations, 2015
Necessary and sufficient conditions for two sequences $\{\mu_n\}_{n=0}^\infty$ and $\{ a_n\}_{n=0}^\infty$ to be the spectral data for a certain Sturm-Liouville problem are well known.
Yuri A. Ashrafyan, Tigran N. Harutyunyan
doaj  

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