Results 61 to 70 of about 7,875,654 (350)

Variational Quantum Linear Solver [PDF]

open access: yesQuantum, 2019
Previously proposed quantum algorithms for solving linear systems of equations cannot be implemented in the near term due to the required circuit depth. Here, we propose a hybrid quantum-classical algorithm, called Variational Quantum Linear Solver (VQLS)
Carlos Bravo-Prieto   +5 more
semanticscholar   +1 more source

Some Variations on Maxwell’s Equations [PDF]

open access: yes, 2007
In the first sections of this article, we discuss two variations on Maxwell's equations that have been introduced in earlier work--a class of nonlinear Maxwell theories with well-defined Galilean limits (and correspondingly generalized Yang-Mills equations), and a linear modification motivated by the coupling of the electromagnetic potential with a ...
Ascoli, Giorgio A., Goldin, Gerald A.
openaire   +2 more sources

On optimal solution error covariances in variational data assimilation problems [PDF]

open access: yes, 2010
The problem of variational data assimilation for a nonlinear evolution model is formulated as an optimal control problem to find unknown parameters such as distributed model coefficients or boundary conditions. The equation for the optimal solution error
Le Dimet, F.X.   +6 more
core   +1 more source

Association Between Dinutuximab Beta Exposure and Post‐End‐of‐Treatment Survival in Neuroblastoma: A Weighted Patient‐Level Analysis of Three Clinical Studies

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives The association between exposure to dinutuximab beta (DB) and event‐free survival (EFS) or overall survival (OS) of neuroblastoma patients was assessed using data collected during three clinical trials (five cohorts). Methods A systematic review (March 2026) was conducted to identify relevant studies (prospective; registered DB ...
Przemysław Holko   +19 more
wiley   +1 more source

Solving the coupled Schrödinger -Korteweg- de-Vries system by modified variational iteration method with genetic algorithm

open access: yesWasit Journal of Computer and Mathematics Science, 2023
 A system of nonlinear partial differential equations was solved using a modified variational iteration method (MVIM) combined with a genetic algorithm.
Ali A. Mustafa, Waleed Al-Hayani
doaj   +1 more source

New Perturbed Proximal Point Algorithms for Set-valued Quasi Variational Inclusions [PDF]

open access: yes, 2004
In this paper, by using some new and innovative techniques, some perturbed iterative algorithms for solving generalized set-valued variational inclusions are suggested and analyzed.
Li, Rong, Shi, Chaofeng
core  

On analysis error covariances in variational data assimilation [PDF]

open access: yes, 2008
The problem of variational data assimilation for a nonlinear evolution model is formulated as an optimal control problem to find the initial condition function (analysis).
Shutyaev, V.   +5 more
core   +1 more source

Classification of variational multiplicative fourth-order difference equations [PDF]

open access: yes, 2022
We use a recently found method to characterize all multiplicative fourth-order difference equations admitting a variational structure. We use this result to give a simplified classification algorithm for such equations and a characterization of the ...
G. Gubbiotti, Giorgio Gubbiotti
core   +1 more source

The Relationship Between Physical Activity and Left Ventricular Remodeling in Childhood Cancer Survivors Treated With Anthracyclines: A Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan   +15 more
wiley   +1 more source

Dyson–Schwinger Approach to Hamiltonian QCD

open access: yesEPJ Web of Conferences, 2017
Dyson–Schwinger equations are an established, powerful non-perturbative tool for QCD. In the Hamiltonian formulation of a quantum field theory they can be used to perform variational calculations with non-Gaussian wave functionals.
Campagnari Davide   +4 more
doaj   +1 more source

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