Results 21 to 30 of about 72,497 (130)

Parareal algorithm via Chebyshev-Gauss spectral collocation method [PDF]

open access: yesarXiv.org, 2023
We present the Parareal-CG algorithm for time-dependent differential equations in this work. The algorithm is a parallel in time iteration algorithm utilizes Chebyshev-Gauss spectral collocation method for fine propagator F and backward Euler method for ...
Quan-Gen Zhou, Yicheng Liu, Shulin Wu
semanticscholar   +1 more source

Almost sure exponential stability of an explicit stochastic orthogonal Runge-Kutta-Chebyshev method for stochastic delay differential equations

open access: yesAdvances in Differential Equations, 2015
Compared with Euler-Maruyama type schemes, there is a lack of studies on the stability of Runge-Kutta type methods applied to stochastic delay differential equations (SDDEs). This paper is concerned with filling this imbalance. The focus is on the almost
Qian Guo, Juan Zhong
semanticscholar   +2 more sources

High order iterative methods for decomposition‐coordination problems

open access: yesTechnological and Economic Development of Economy, 2006
Many real‐life optimization problems are of the multiobjective type and highdimensional. Possibilities for solving large scale optimization problems on a computer network or multiprocessor computer using a multi‐level approach are studied.
Otu Vaarmann
doaj   +1 more source

A semilocal convergence analysis for the method of tangent parabolas

open access: yesJournal of Numerical Analysis and Approximation Theory, 2005
We present a semilocal convergence analysis for the method of tangent parabolas (Euler-Chebyshev) using a combination of Lipschitz and center Lipschitz conditions on the Fréchet derivatives involved.
Ioannis K. Argyros
doaj   +2 more sources

Computational formulas and identities for new classes of Hermite‐based Milne–Thomson type polynomials: Analysis of generating functions with Euler's formula

open access: yesMathematical methods in the applied sciences, 2021
The aim of this paper is to construct generating functions for a new family of polynomials, which are called parametric Hermite‐based Milne–Thomson type polynomials.
Neslihan Kilar, Y. Simsek
semanticscholar   +1 more source

Monetary Policy When Preferences Are Quasi‐Hyperbolic

open access: yesJournal of Money, Credit and Banking, EarlyView.
Abstract We study discretionary monetary policy in an economy where economic agents have quasi‐hyperbolic discounting. We demonstrate that a benevolent central bank is able to keep inflation under control for a wide range of discount factors. If the central bank, however, does not adopt the household's time preferences and tries to discourage early ...
RICHARD DENNIS, OLEG KIRSANOV
wiley   +1 more source

What If Each Voxel Were Measured With a Different Diffusion Protocol?

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 4, Page 2277-2290, April 2026.
ABSTRACT Purpose Expansion of diffusion MRI (dMRI) both into the realm of strong gradients and into accessible imaging with portable low‐field devices brings about the challenge of gradient nonlinearities. Spatial variations of the diffusion gradients make diffusion weightings and directions non‐uniform across the field of view, and deform perfect ...
Santiago Coelho   +7 more
wiley   +1 more source

Biases towards the zero residue class for quadratic forms in arithmetic progressions

open access: yesMathematika, Volume 72, Issue 2, April 2026.
Abstract We prove a bias towards the zero residue class in the distribution of the integers represented by binary quadratic forms. In most cases, we prove that the bias comes from a secondary term in an associated asymptotic expansion. This is unlike Chebyshev's bias, which exists somewhere at the level of O(x1/2+ε)$O(x^{1/2+\varepsilon })$.
Jeremy Schlitt
wiley   +1 more source

Algebraic Multigrid Based Preconditioning Approaches for Generalized Continuum Models and Indirect Displacement Control Techniques

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 6, 30 March 2026.
ABSTRACT The contribution deals with algebraic multigrid (AMG) based preconditioning methods for the iterative solution of a coupled linear system of equations arising in numerical simulations of failure of quasi‐brittle materials using generalized continuum approaches.
Nasser Alkmim   +4 more
wiley   +1 more source

Application of Mini-max Polynomial Approximation Method to Neutron Activation Calculation under Various Operating Conditions

open access: yesYuanzineng kexue jishu, 2023
The structural materials in the reactor and the corrosion products in the loop will be activated into radionuclides after being irradiated by strong neutrons.
ZHANG Binhang;BI Yanzhao;ZHANG Cong;YUAN Xianbao;ZHANG Yonghong;TANG Haibo
doaj  

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