0410314 20240103182205.420060210235959.9 10 s. 3707-716 cav_un_auth*0101131 Kočvara Michal UTIA-B Department of Decision Making Theory Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0212008 Zowe J. DE 12C IAA1075707 GA AV CZ cav_un_auth*0012793 Free material design deals with the question of finding the stiffest structure with respect to one or more given loads which can be made when both the distribution of material and the material itself can be freely varied. After a series of transformation steps we reach a problem formulation for which we can prove existence of a solution; a suitable discretization leads to a semidefinite programming problem for which modern polynomial time algorithms of interior-point type are available. BA MTR http://hdl.handle.net/11104/0130405 UTIA-B 20000030 1998 Documenta Mathematica Roč. 3 - 1998 707 716