Results 61 to 70 of about 3,873,104 (284)

On condition numbers of symmetric and nonsymmetric domain decomposition methods

open access: yes, 2020
Using oblique projections and angles between subspaces we write condition number estimates for abstract nonsymmetric domain decomposition methods. In particular, we consider a restricted additive method for the Poisson equation and write a bound for the ...
Galvis, Juan
core  

Quantum Algorithms for Boolean Equation Solving and Quantum Algebraic Attack on Cryptosystems [PDF]

open access: yes, 2018
Decision of whether a Boolean equation system has a solution is an NPC problem and finding a solution is NP hard. In this paper, we present a quantum algorithm to decide whether a Boolean equation system FS has a solution and compute one if FS does have ...
Chen, Yu-Ao, Gao, Xiao-Shan
core   +1 more source

A Spherical Plasma Dynamo Experiment

open access: yes, 2009
We propose a plasma experiment to be used to investigate fundamental properties of astrophysical dynamos. The highly conducting, fast-flowing plasma will allow experimenters to explore systems with magnetic Reynolds numbers an order of magnitude larger ...
Bourgoin   +17 more
core   +1 more source

Condition Numbers of Random Triangular Matrices [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 1998
It is shown that the 2-norm condition number of a lower triangular matrix of dimension \(n\), whose entries come from an independent normal variable of mean 0 and variance 1, grows exponentially with \(n\). This is in striking contrast to the linear growth of the condition number of random dense matrices.
Viswanath, D., Trefethen, L. N.
openaire   +2 more sources

Outcomes of Live Virus Vaccination in Patients With Vascular Anomalies Being Treated With Sirolimus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Live vaccination in patients with vascular anomalies (VA) receiving sirolimus remains controversial due to immunosuppressive effects and theoretical risks. Procedure This single‐center retrospective study included patients with VA less than 4 years old at the start of sirolimus therapy who were incompletely vaccinated.
Svatava Merkle   +5 more
wiley   +1 more source

Conditioning Theory for ML-Weighted Pseudoinverse and ML-Weighted Least Squares Problem

open access: yesAxioms
The conditioning theory of the ML-weighted least squares and ML-weighted pseudoinverse problems is explored in this article. We begin by introducing three types of condition numbers for the ML-weighted pseudoinverse problem: normwise, mixed, and ...
Mahvish Samar, Xinzhong Zhu, Huiying Xu
doaj   +1 more source

On (k,p)-Fibonacci numbers and matrices [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
In this paper, some relations between the powers of any matrices X satisfying the equation Xᵏ-pXᵏ⁻¹-(p-1)X-I=0 and (k,p)-Fibonacci numbers are established with ...
Sinan Karakaya   +2 more
doaj   +1 more source

Defect via differential forms with logarithmic poles

open access: yes, 2009
We prove formulae for the Hodge numbers of big resolutions of singular hypersurfaces satisfying a Bott-type vanishing ...
Batyrev   +22 more
core   +1 more source

Condition operators, condition numbers, and condition number theorem for the generalized eigenvalue problem

open access: yesLinear Algebra and its Applications, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

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