TY - JOUR AU - E. Mitidieri AU - S. I. Pohozaev TI - Nonexistence of Weak Solutions for Some Degenerate and Singular Hyperbolic Problems on $\mathbb R_+^{n+1}$ JO - Informatics and Automation PY - 2001 SP - 248 EP - 267 VL - 232 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2001_232_a20/ LA - ru ID - TRSPY_2001_232_a20 ER -