English

Some sharp null-form type estimates for the Klein--Gordon equation

Analysis of PDEs 2022-01-03 v2 Classical Analysis and ODEs

Abstract

We establish a sharp bilinear estimate for the Klein--Gordon propagator in the spirit of recent work of Beltran--Vega. Our approach is inspired by work in the setting of the wave equation due to Bez, Jeavons and Ozawa. As a consequence of our main bilinear estimate, we deduce several sharp estimates of null-form type and recover some sharp Strichartz estimates found by Quilodr\'an and Jeavons.

Cite

@article{arxiv.2102.03142,
  title  = {Some sharp null-form type estimates for the Klein--Gordon equation},
  author = {Jayson Cunanan and Shobu Shiraki},
  journal= {arXiv preprint arXiv:2102.03142},
  year   = {2022}
}

Comments

21 pages, 2 figures

R2 v1 2026-06-23T22:52:17.861Z