The lifespan of solutions to wave equations with weighted nonlinear terms in one space dimension

被引:9
作者
Wakasa, Kyouhei [1 ]
机构
[1] Muroran Inst Technol, Math Sci Res Unit, Coll Liberal Arts, 27-1 Mizumoto Cho, Muroran, Hokkaido 0508585, Japan
关键词
nonlinear wave equation; lifespan; one space dimension; BLOW-UP;
D O I
10.14492/hokmj/1498788020
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we consider the initial value problem for nonlinear wave equation with weighted nonlinear terms in one space dimension. Kubo & Osaka & Yazici [4] studied global solvability of the problem under different conditions on the nonlinearity and initial data, together with an upper bound of the lifespan for the problem. The aim of this paper is to improve the upper bound of the lifespan and to derive its lower bound which shows the optimality of our new upper bound.
引用
收藏
页码:257 / 276
页数:20
相关论文
共 7 条