Results 21 to 30 of about 505,655 (294)

Albertson (Alb) spectral radii and Albertson (Alb) energies of graph operation

open access: yesFrontiers in Chemistry, 2023
The sum of the absolute eigenvalues of the adjacency matrix make up graph energy. The greatest absolute eigenvalue of the adjacency matrix is represented by the spectral radius of the graph.
Muhammad Mobeen Munir, Urwah Tul Wusqa
doaj   +1 more source

Computing Exponential for Iterative Splitting Methods: Algorithms and Applications

open access: yesJournal of Applied Mathematics, 2011
Iterative splitting methods have a huge amount to compute matrix exponential. Here, the acceleration and recovering of higher-order schemes can be achieved.
Jürgen Geiser
doaj   +1 more source

Applications of Modified Bessel Polynomials to Solve a Nonlinear Chaotic Fractional-Order System in the Financial Market: Domain-Splitting Collocation Techniques

open access: yesComputation, 2023
We propose two accurate and efficient spectral collocation techniques based on a (novel) domain-splitting strategy to handle a nonlinear fractional system consisting of three ODEs arising in financial modeling and with chaotic behavior.
Mohammad Izadi, Hari Mohan Srivastava
doaj   +1 more source

Random matrix ensembles with split limiting behavior [PDF]

open access: yesRandom Matrices: Theory and Applications, 2018
We introduce a new family of [Formula: see text] random real symmetric matrix ensembles, the [Formula: see text]-checkerboard matrices, whose limiting spectral measure has two components which can be determined explicitly. All but [Formula: see text] eigenvalues are in the bulk, and their behavior, appropriately normalized, converges to the semi-circle
Burkhardt, Paula   +8 more
openaire   +2 more sources

The triple collinear limit of one-loop QCD amplitudes [PDF]

open access: yes, 2003
We consider the singular behaviour of one-loop QCD matrix elements when several external partons become simultaneously parallel. We present a new factorization formula that describes the singular collinear behaviour directly in colour space.
't Hooft   +50 more
core   +3 more sources

Particle flow simulation of Brazilian splitting failure characteristics of layered shale

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
Shale reservoir is the research hotspot in the development of unconventional oil and gas resources. The properties of bedding plane have an important influence on the mechanical behavior of shale.
Feng Sun   +4 more
doaj   +1 more source

A Matrix Splitting Perspective on Planning with Options

open access: yesCoRR, 2016
We show that the Bellman operator underlying the options framework leads to a matrix splitting, an approach traditionally used to speed up convergence of iterative solvers for large linear systems of equations. Based on standard comparison theorems for matrix splittings, we then show how the asymptotic rate of convergence varies as a function of the ...
Pierre-Luc Bacon, Doina Precup
openaire   +2 more sources

Intersubband spin-density excitations in quantum wells with Rashba spin splitting [PDF]

open access: yes, 2002
In inversion-asymmetric semiconductors, spin-orbit coupling induces a k-dependent spin splitting of valence and conduction bands, which is a well-known cause for spin decoherence in bulk and heterostructures. Manipulating nonequilibrium spin coherence in
A. Bournel   +53 more
core   +3 more sources

Comparison Theorems of Spectral Radius for Splittings of Matrices

open access: yesJournal of Applied Mathematics, 2014
A class of the iteration method from the double splitting of coefficient matrix for solving the linear system is further investigated. By structuring a new matrix, the iteration matrix of the corresponding double splitting iteration method is presented ...
Cui-Xia Li, Su-Hua Li
doaj   +1 more source

Splitting the spectral flow and the Alexander matrix

open access: yesCommentarii Mathematici Helvetici, 1994
This paper studies the problem of computing the spectral flow \(\text{SF} (\alpha, \beta)\) of the Atiyah-Patodi-Singer operator between two flat SU(2)-connexions \(\alpha, \beta\) on a 3-manifold \(Z\), when \(Z\) is split along a torus so that \(\alpha,\beta\) can be connected by a path of flat connexions on each piece.
Kirk, P., Klassen, E., Ruberman, D.
openaire   +2 more sources

Home - About - Disclaimer - Privacy