Peng, Xiao-ming; Shang, Ya-dong; Wang, Xue-qin An explicit lower bound for blow up time in a class of nonlinear wave equations with nonlinear damping and source terms. (English) Zbl 1464.35045 Acta Math. Appl. Sin., Engl. Ser. 37, No. 1, 148-154 (2021). MSC: 35B44 35L82 35L20 58J45 PDFBibTeX XMLCite \textit{X.-m. Peng} et al., Acta Math. Appl. Sin., Engl. Ser. 37, No. 1, 148--154 (2021; Zbl 1464.35045) Full Text: DOI
Hu, Jicheng A kind of integral representation on Riemannian manifolds. (English) Zbl 0953.32003 Wuhan Univ. J. Nat. Sci. 1, No. 1, 14-16 (1996). MSC: 32A26 58C10 PDFBibTeX XMLCite \textit{J. Hu}, Wuhan Univ. J. Nat. Sci. 1, No. 1, 14--16 (1996; Zbl 0953.32003) Full Text: DOI