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A convergence result for spatially inhomogeneous Preisach operators
Based on the properties of the strongly nonlinear Preisach operator, a convergence result is proved under reasonable assumptions.
BA - Obecná matematika
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Identification of Preisach-type hysteresis operators
Identification of a Preisach-type operator using a suitable fixed ridge functions is shown to be a well-posed problem and its discretization is proved to converge and is implemented by an adaptive manner....
BA - Obecná matematika
- 2008 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Magnetohydrodynamic Flow with Hysteresis
by the Preisach hysteresis operator. Existence and uniqueness of solutions for the resulting of the Preisach operator....
BA - Obecná matematika
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Water flow through unsaturated porous media with hysteresis
The paper is devoted to the investigation of a parabolic equation with the Preisach operator under the time derivative. The model equation appears in the context of soil water hysteresis. Under suitable assumptions an existence resu...
BA - Obecná matematika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
The Preisach hysteresis model: Error bounds for numerical identification and inversion
of the Preisach density function and for an approximate inversion of the Preisach operator.A structure analysis of the Preisach model in a variational setting is carried out by means of an auxiliary hyperbolic equ...
BA - Obecná matematika
- 2013 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
A homogenization result for a parabolic equation with Preisach hysteresis
In this paper we consider an initial boundary value parabolic problem with Preisach hysteresis. The equation is homogenized by considering a sequence of equations with spatially periodic data where the spatial period converges to $0$. Proper...
BA - Obecná matematika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
On a model with hysteresis arising in magnetohydrodynamics
We study the flow of a conducting fluid surrounded by a ferromagnetic solid, under the influence of the hysteretic response of the surrounding medium. We assume that this influence can be represented by the Preisach model and show existence ...
BA - Obecná matematika
- 2008 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Thermodynamical consistency - a mystery or?
temperature,we discuss classical hysteresis models as the play operator, the Preisach operator as well as new models introduced in the last years - the temperature dependent Preisach model, models of magnetostrict...
BA - Obecná matematika
- 2015 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Hysteresis in flow through porous media
Porous media flow is described by a class of PDEs whose model equation is represented by the Richards equation with soil-moisture hysteresis term. We assume that the hysteresis is represented by the Preisach hysteresis operator. Und...
BA - Obecná matematika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Asymptotic behaviour of a Neumann parabolic problem with hysteresis
A parabolic equation in two or three space variables with a Preisach hysteresis operator and with homogeneous Neumann boundary conditions is shown to admit a unique global regular solution. A detailed investigation of the Preisa...
BA - Obecná matematika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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