Results 11 to 20 of about 4,525,854 (182)

Construction of efficient general linear methods for non-stiff differential systems

open access: yesMathematical Modelling and Analysis, 2012
This paper describes the construction of explicit general linear methods in Nordsieck form with inherent quadratic stability and large areas of the stability region.
Michal Bra´s, Angelamaria Cardone
doaj   +1 more source

Implementation of explicit Nordsieck methods with inherent quadratic stability

open access: yesMathematical Modelling and Analysis, 2013
The present paper deals with the implementation in a variable-step algorithm of general linear methods in Nordsieck form with inherent quadratic stability and large stability regions constructed recently by Braś and Cardone. Various implementation issues
Michel Bras   +2 more
doaj   +1 more source

Nordsieck methods with inherent quadratic stability

open access: yesMathematical Modelling and Analysis, 2011
We derive suffcient conditions which guarantee that the stability polynomial of Nordsieck method for ordinary differential equations has only two nonzero roots. Examples of such methods up to order four are presented which are A-and L-stable.
M. Braś
doaj   +1 more source

Optimization-based search for nordsieck methods of high order with quadratic stability polynomials

open access: yesMathematical Modelling and Analysis, 2012
We describe the search for explicit general linear methods in Nordsieck form for which the stability function has only two nonzero roots. This search is based on state-of-the-art optimization software.
Angelamaria Cardone   +2 more
doaj   +1 more source

The Z5 transformation for solving quasi-linear partial differential equations

open access: yesPartial Differential Equations in Applied Mathematics, 2023
The Z1-Z4 transformations proposed in our previous papers have acquired remarkable success in the field of linear partial differential equations, general solutions of a large number of typical equations were obtained for the first time, and exact ...
Hong Lai Zhu
doaj   +1 more source

A practical approach for the derivation of algebraically stable two-step Runge-Kutta methods

open access: yesMathematical Modelling and Analysis, 2012
We describe an algorithm, based on a new strategy recently proposed by Hewitt and Hill in the context of general linear methods, for the construction of algebraically stable two-step Runge-Kutta methods.
Dajana Conte   +3 more
doaj   +1 more source

Empirical risk minimization as parameter choice rule for general linear regularization methods.

open access: yes, 2020
We consider the statistical inverse problem to recover f from noisy measurements Y = Tf + sigma xi where xi is Gaussian white noise and T a compact operator between Hilbert spaces.
Li, H., Werner, F.
core   +1 more source

Model Reduction by Moment Matching for Linear Switched Systems [PDF]

open access: yes, 2014
Two moment-matching methods for model reduction of linear switched systems (LSSs) are presented. The methods are similar to the Krylov subspace methods used for moment matching for linear systems.
Bastug, Mert   +3 more
core   +3 more sources

Strong Stability Preserving Multistage Integration Methods

open access: yesMathematical Modelling and Analysis, 2015
In this paper we systematically investigate explicit strong stability preserving (SSP) multistage integration methods, a subclass of general linear methods (GLMs), of order p and stage order q ≤ p.
Giuseppe Izzo, Zdzislaw Jackiewicz
doaj   +1 more source

Dimensionality Reduction Mappings [PDF]

open access: yes, 2011
A wealth of powerful dimensionality reduction methods has been established which can be used for data visualization and preprocessing. These are accompanied by formal evaluation schemes, which allow a quantitative evaluation along general principles and ...
Biehl, Michael   +3 more
core   +2 more sources

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