Results 21 to 30 of about 2,092,411 (198)

Variable-Stepsize Multilayer Neural Network for Subpixel Target Detection in Hyperspectral Imaging

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Conventional algorithms for subpixel target detection of a rare target in hyperspectral imaging are derived from the generalized likelihood ratio test.
Edisanter Lo
doaj   +2 more sources

The spectrum of numerical integration methods with computed variable stepsize [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 1970
Numerical integration techniques which have been previously thought of as distinct are shown to be examples of a general type. The variations from the general form comprise a spectrum of methods whose extremes are the “onestep” methods and the “multistep”
Papian, LaVerne E, Ball, William E
core   +2 more sources

Convergence and stability of variable-stepsize variable-formula multistep multiderivative methods

open access: yes, 1986
During the numerical integration of a system of first order differential equations, practical algorithms which use linear multistep formulas try to keep the estimated local truncation error smaller than a user-supplied tolerance. This is usually achieved
Buls, Gary
core   +4 more sources

On the stability of variable stepsize rational approximations of holomorphic semigroups

open access: yesMathematics of Computation, 1994
We consider variable stepsize time approximations of holomorphic semigroups on general Banach spaces. For strongly A ( θ ) {\text {A}}(\theta ) -acceptable rational functions a general ...
C. Palencia
core   +2 more sources

On the zero-stability of variable stepsize multistep methods: the spectral radius approach.

open access: yesNumerische Mathematik, 2001
In this paper we illustrate a novel approach for studying the asymptotic behaviour of the solutions of linear difference equations with variable coefficients.
GUGLIELMI N.   +3 more
core   +4 more sources

Variable stepsize SDIMSIMs for ordinary differential equations [PDF]

open access: yesApplied Numerical Mathematics, 2021
Second derivative general linear methods (SGLMs) have been already implemented in a variable stepsize environment using Nordsieck technique. In this paper, we introduce variable stepsize SGLMs directly on nonuniform grid. By deriving the order conditions of the proposed methods of order $p$ and stage order $q=p$, some explicit examples of these methods
Arash Jalilian   +2 more
openaire   +2 more sources

Almost sure stability of the Euler-Maruyama method with random variable stepsize for stochastic differential equations [PDF]

open access: yes, 2016
In this paper, the Euler–Maruyama (EM) method with random variable stepsize is studied to reproduce the almost sure stability of the true solutions of stochastic differential equations.
Liu, Wei, Mao, Xuerong
core   +4 more sources

Variable stepsize implicit-explicit general linear methods

open access: yes, 2019
Many practical problems in science and engineering are modeled by large systems of ordinary differential equations (ODEs) with additive vector field, whose terms have different stiffness properties. Such a systems can often be written in the form y'(t)
Giuseppe Izzo   +2 more
core   +2 more sources

Variable stepsize störmer-cowell methods

open access: yesMathematical and Computer Modelling, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Higinio Ramos, Jesús Vigo-Aguiar
openaire   +1 more source

Adaptive stepsize based on control theory for stochastic differential equations [PDF]

open access: yes, 2004
The numerical solution of stochastic differential equations (SDEs) has been focussed recently on the development of numerical methods with good stability and order properties.
Burrage, P.M.   +4 more
core   +1 more source

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