Results 91 to 100 of about 256 (175)

An Implicitly Restarted Symplectic Lanczos Method for the Symplectic Eigenvalue Problem

, 1998
. An implicitly restarted symplectic Lanczos method for the symplectic eigenvalue problem is presented. The Lanczos vectors are constructed to form a symplectic basis.
Heike Faßbender, Peter Benner
core  

Markov Chain Sensitivity Measured By Mean First Passage Times

, 1999
The purpose of this article is to present results concerning the sensitivity of the stationary probabilities for a n-state, time-homogeneous, irreducible Markov chain in terms of the mean first passage times in the chain. Key words.
Grace E. Cho, Carl D. Meyer
core  

Construction of 4 x 4 symmetric stochastic matrices with given spectra

Open Mathematics
The symmetric stochastic inverse eigenvalue problem (SSIEP) asks which lists of real numbers occur as the spectra of symmetric stochastic matrices. When the cardinality of a list is 4, Kaddoura and Mourad provided a sufficient condition for SSIEP by a ...
Jung Jaewon, Kim Donggyun
doaj   +1 more source

Bounds On The Extreme Eigenvalues Of Real Symmetric Toeplitz Matrices

, 2000
We derive upper and lower bounds on the smallest and largest eigenvalues, respectively, of real symmetric Toeplitz matrices. The bounds are first obtained for positive-definite matrices and then extended to the general real symmetric case. Our bounds are
A. Melman
core  

On the Laplacian index of tadpole graphs

Special Matrices
In this article, we study the Laplacian index of tadpole graphs, which are unicyclic graphs formed by adding an edge between a cycle Ck{C}_{k} and a path Pn{P}_{n}.
Braga Rodrigo O., Veloso Bruno S.
doaj   +1 more source

Esophageal Stenting: How I Do It. [PDF]

GE Port J Gastroenterol, 2023
Silva R.
europepmc   +1 more source

The hyperbolic CS decomposition of tensors based on the C-product

Open Mathematics
This paper studies the issues about the hyperbolic CS decomposition of tensors under the C-product. The aim of this paper is fourfold. Firstly, we establish the CS decomposition of a complex unitary tensor, including the thin version and the standard ...
Jin Hongwei, Chen Siran, Benítez Julio
doaj   +1 more source

Forecasting the action of CAR-T cells against SARS-corona virus-II infection with branching process. [PDF]

Model Earth Syst Environ, 2022
Al-Utaibi KA, Nutini A, Sohail A, Arif R, Tunc S, Sait SM.   +5 more
europepmc   +1 more source

Improved Ky Fan theorems for tensors

Demonstratio Mathematica
In this paper, we introduce two new structured tensors, which are called generalized nonnegative tensors and GM $G\mathcal{M}$ -tensors. These concepts extend the concepts of nonnegative tensors and M $\mathcal{M}$ -tensors.
He Jun, Liu Yanmin, Luo Dongsheng, Zeng Qingyu   +3 more
doaj   +1 more source

If A Matrix Has Only A Single Eigenvalue How Sensitive Is This Eigenvalue? II

, 1998
. For matrices with a single eigenvalue the sensitivity of the eigenvalue to perturbations in the matrix is analyzed. Simple bounds are derived that separate the influence of the index on the eigenvalue sensitivity from the influence of the non-normality.
Grace E. Cho, C. F. Ipsen, Ilse
core