TY - JOUR AU - Díaz Díaz, Jesús Ildefonso AU - Galiano, Gonzalo AU - Jungel, Ansgar PY - 1997 DO - 10.1016/S0764-4442(97)83953-5 SN - 0764-4442 UR - https://hdl.handle.net/20.500.14352/57402 T2 - Comptes Rendus de l'Académie des Sciences. Série I. Mathématique AB - A degenerate parabolic system consisting in two continuity equations for densities of charged particles and in the Poisson equation for an electric potential is considered. We show the finite speed of propagation, a waiting time property for the... LA - eng M2 - 267 PB - Elsevier KW - drift-diffusion model KW - two continuity equations KW - Poisson equation KW - formation of vacuum KW - energy methods TI - Space localization and uniqueness of solutions of a quasilinear parabolic system arising in semiconductor theory TY - journal article VL - 325 ER -