TY - JOUR AU - N. S. Gusev TI - Canonical decompositions of piecewise affine mappings, polyhedra-traces, and geometrical variational problems JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2006 SP - 57 EP - 94 VL - 12 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2006_12_1_a1/ LA - ru ID - FPM_2006_12_1_a1 ER -