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Microlocal Partition of Energy for Fractional-Type Dispersive Equations

Analysis of PDEs 2025-09-10 v1

Abstract

This paper is devoted to the proof of microlocal partition of energy for fractional-type dispersive equations including Schr\"odinger equation, linearized gravity or capillary water-wave equation and half-Klein-Gordon equation. Roughly speaking, a quarter of the L2L^2 energy lies inside or outside the "light cone" x=tP(ξ)|x| = |tP'(\xi)| for large time. In addition, based on the study of half-Klein-Gordon equation, the microlocal partition of energy will also be proved for Klein-Gordon equation.

Keywords

Cite

@article{arxiv.2309.15282,
  title  = {Microlocal Partition of Energy for Fractional-Type Dispersive Equations},
  author = {Haocheng Yang},
  journal= {arXiv preprint arXiv:2309.15282},
  year   = {2025}
}