The design of a two-dimensional domain

摘要: The analysis contained in the paper is not complete sense that designs of perforations and external shape structure should be conducted parallel. In consequence cells would no longer square. Let us note however formulae for substitute coefficients may applied such irregular as well. From variational interpretation given by Propositions 8÷11 it follows those will approximate behaviour independently their shapes. Hence techniques used perforation design are applicable also general optimization, where both taken into account.