TY - JOUR AU - E. Yu. Panov TI - On the structure of weak solutions of the Riemann problem for a degenerate nonlinear diffusion equation JO - Contemporary Mathematics. Fundamental Directions PY - 2023 SP - 676 EP - 684 VL - 69 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMFD_2023_69_4_a7/ LA - ru ID - CMFD_2023_69_4_a7 ER -