TY - JOUR AU - E. V. Radkevich TI - On well-posedness of the Cauchy Problem and the Mixed Problem for some class of hyperbolic systems and equations with constant coefficients and variable multiplicity of characteristics JO - Contemporary Mathematics. Fundamental Directions PY - 2006 SP - 110 EP - 135 VL - 16 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMFD_2006_16_a7/ LA - ru ID - CMFD_2006_16_a7 ER -