Abstract
We first consider deterministic immersions of the d-dimensional sphere into high dimensional Euclidean spaces, where the immersion is via spherical harmonics of level n. The main result of the article is the, a priori unexpected, fact that there is a uniform lower bound to the critical radius of the immersions as n→8. This fact has immediate implications for random spherical harmonics with fixed L 2 -norm. In particular, it leads to an exact and explicit formulae for the tail probability of their (large deviation) suprema by the tube formula, and also relates this to the expected Euler characteristic of their upper level sets.
Original language | English |
---|---|
Pages (from-to) | 1162-1184 |
Number of pages | 23 |
Journal | Annals of Probability |
Volume | 47 |
Issue number | 2 |
DOIs | |
State | Published - 2019 |
Keywords
- Asymptotics
- Critical radius
- Curvature
- Gaussian ensemble
- Large deviations
- Reach
- Spherical ensemble
- Spherical harmonics
ASJC Scopus subject areas
- Statistics and Probability
- Statistics, Probability and Uncertainty