Publication detail
Worst scenario method in homogenization. Linear Case.
NECHVÁTAL, L.
Czech title
Metoda nejhoršího scénáře v homogenizaci. Lineární případ.
English title
Worst scenario method in homogenization. Linear Case.
Type
journal article - other
Language
en
Original abstract
The paper deals with homogenization of a linear elliptic boundary problem with a specific class of uncertain coefficients describing composite materials with periodic structure. Instead of stochastic approach to the problem, we use the worst scenario method due to Hlaváček (method of reliable solution). A few criterion functionals are introduced. We focus on the range of the homogenized coefficients from knowledge of the ranges of individual components in the composite, on the values of generalized gradient in the places, where these components change and on the average of homogenized solution in some critical subdomain.
Czech abstract
Práce se zbývá homogenizací lineární eliptické úlohy s určitou třídou neurčitých koeficientů, která popisuje materiály s periodickou strukturou. Namísto stochastického přístupu je použita Hlaváčkova metoda nejhoršího scénáře (metoda spolehlivého řešení). Uvažujeme několik kriteriálních funkcionálů, přičemž se zaměřujeme na rozsah homogenizovaných koeficientů ze znalosti rozmezí jednotlivých složek kompozitu, na zobecněný gradient v místech přechodů složek a na průměrnou hodnotů homogenizovaného řešení v určitých kritickýcj místech oblasti.
English abstract
The paper deals with homogenization of a linear elliptic boundary problem with a specific class of uncertain coefficients describing composite materials with periodic structure. Instead of stochastic approach to the problem, we use the worst scenario method due to Hlaváček (method of reliable solution). A few criterion functionals are introduced. We focus on the range of the homogenized coefficients from knowledge of the ranges of individual components in the composite, on the values of generalized gradient in the places, where these components change and on the average of homogenized solution in some critical subdomain.
Keywords in English
homogenization;two-scale convergence;worst-scenario;reliable solution
RIV year
2006
Released
15.06.2006
Publisher
Mathematical Institute, Academy of Sciences of the Czech Republic
Location
Prague
ISSN
0862-7940
Journal
APPLICATIONS OF MATHEMATICS
Volume
51
Number
3
Pages from–to
263–294
Pages count
32
BIBTEX
@article{BUT43203,
author="Luděk {Nechvátal},
title="Worst scenario method in homogenization. Linear Case.",
journal="APPLICATIONS OF MATHEMATICS",
year="2006",
volume="51",
number="3",
month="June",
pages="263--294",
publisher="Mathematical Institute, Academy of Sciences of the Czech Republic",
address="Prague",
issn="0862-7940"
}