Department of Mathematics
Faculty of Science
University of Zagreb, Croatia
email: marko@math.hr
Marko Vrdoljak
Abstract:
A multiple state optimal design problem with presence of uncertainty on
the right-hand side is considered, in the context of stationary diffusion
with two isotropic phases.
A similar problem with one state equation has already been considered by
Buttazzo and Maestre (2011). We shall address the question of relaxation
by the homogenization method and necessary conditions of optimality.
The case of discrete probability space leads to another multiple state problem
(possibly with an infinite number of states), which could be treated by similar
techniques to those presented in Allaire (2002) and Vrdoljak (2010).
The relaxation can be expressed in a simpler form for problems with spherical
symmetry in the case of minimization (or maximization) of averaged
energy, and we present an example which can be solved explicitly.
Submitted April 28, 2017. Published March 2, 2018.
Math Subject Classifications: 49K35, 49K20, 49J20, 80M40
Key Words: Stationary diffusion; optimal design; homogenization;
random perturbation; optimality conditions.
Show me the PDF file (363 KB), TEX file for this article.
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Marko Vrdoljak Department of Mathematics Faculty of Science University of Zagreb, Croatia email: marko@math.hr |
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