TY - JOUR AU - T. Ehrhardt AU - I. M. Spitkovsky TI - Factorization of piecewise constant matrix functions and systems of linear differential equations JO - Algebra i analiz PY - 2001 SP - 56 EP - 123 VL - 13 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_2001_13_6_a1/ LA - ru ID - AA_2001_13_6_a1 ER -