English

On extended lifespan for 1d damped wave equation

Analysis of PDEs 2022-12-29 v1

Abstract

In this manuscript, a sharp lifespan estimate of solutions to semilinear classical damped wave equation is investigated in one dimensional case, when the sum of initial position and speed is 00 pointwisely. Especially, an extension of lifespan is shown in this case. Moreover, existence of some global solutions are obtained by a direct computation.

Keywords

Cite

@article{arxiv.2212.13845,
  title  = {On extended lifespan for 1d damped wave equation},
  author = {Kazumasa Fujiwara and Vladimir Georgiev},
  journal= {arXiv preprint arXiv:2212.13845},
  year   = {2022}
}

Comments

11 pages

R2 v1 2026-06-28T07:54:50.846Z