English

Eigenfunction scarring and improvements in $L^{\infty}$ bounds

Analysis of PDEs 2018-03-16 v2 Classical Analysis and ODEs Spectral Theory

Abstract

We study the relationship between LL^\infty growth of eigenfunctions and their L2L^2 concentration as measured by defect measures. In particular, we show that scarring in the sense of concentration of defect measure on certain submanifolds is incompatible with maximal LL^\infty growth. In addition, we show that a defect measure which is too diffuse, such as the Liouville measure, is also incompatible with maximal eigenfunction growth.

Cite

@article{arxiv.1703.10248,
  title  = {Eigenfunction scarring and improvements in $L^{\infty}$ bounds},
  author = {Jeffrey Galkowski and John A. Toth},
  journal= {arXiv preprint arXiv:1703.10248},
  year   = {2018}
}

Comments

10 pages

R2 v1 2026-06-22T19:01:42.309Z