Williams, Mark Interaction of singularities and propagation into shadow regions in semilinear boundary problems. (English) Zbl 0817.35003 Microlocal analysis and nonlinear waves, Proc. Workshop, IMA Program Nonlinear Waves, Minneapolis/MN (USA) 1988-89, IMA Vol. Math. Appl. 30, 185-199 (1991). MSC: 35A20 35L67 35L70 PDF BibTeX XML Cite \textit{M. Williams}, IMA Vol. Math. Appl. 30, 185--199 (1991; Zbl 0817.35003) OpenURL
Lai, Shaoyong; Du, Xinhua Analysis of singularities of solutions to semilinear wave equation \(\square u=f(t,x,u,Du)\) in high space dimensions. (Chinese) Zbl 0707.35097 Chin. Ann. Math., Ser. A 10, No. 4, 464-468 (1989). MSC: 35L70 35B99 PDF BibTeX XML Cite \textit{S. Lai} and \textit{X. Du}, Chin. Ann. Math., Ser. A 10, No. 4, 464--468 (1989; Zbl 0707.35097) OpenURL