Kharibegashvili, S. S. On the existence or absence of global solutions for the multidimensional version of the second Darboux problem for some nonlinear hyperbolic equations. (English. Russian original) Zbl 1131.35365 Differ. Equ. 43, No. 3, 402-416 (2007); translation from Differ. Uravn. 43, No. 3, 388-401 (2007). MSC: 35L70 35L20 35A05 PDFBibTeX XMLCite \textit{S. S. Kharibegashvili}, Differ. Equ. 43, No. 3, 402--416 (2007; Zbl 1131.35365); translation from Differ. Uravn. 43, No. 3, 388--401 (2007) Full Text: DOI
Kharibegashvili, S. S. On the nonexistence of global solutions of the characteristic Cauchy problem for a nonlinear wave equation in a conical domain. (English. Russian original) Zbl 1131.35366 Differ. Equ. 42, No. 2, 279-290 (2006); translation from Differ. Uravn. 42, No. 2, 261-271 (2006). MSC: 35L70 35L15 PDFBibTeX XMLCite \textit{S. S. Kharibegashvili}, Differ. Equ. 42, No. 2, 279--290 (2006; Zbl 1131.35366); translation from Differ. Uravn. 42, No. 2, 261--271 (2006) Full Text: DOI