A sharp bound for the Stein-Wainger oscillatory integral
Classical Analysis and ODEs
2008-10-21 v2
Abstract
Let Pd denote the space of all real polynomials of degree at most d. It is an old result of Stein and Wainger that for every polynomial P in Pd: |p.v.\int_R {e^{iP(t)} dt/t} | < C(d) for some constant C(d) depending only on d. On the other hand, Carbery, Wainger and Wright claim that the true order of magnitude of the above principal value integral is log d. We prove this conjecture.
Keywords
Cite
@article{arxiv.0709.1466,
title = {A sharp bound for the Stein-Wainger oscillatory integral},
author = {Ioannis Parissis},
journal= {arXiv preprint arXiv:0709.1466},
year = {2008}
}
Comments
11 pages; Paper published in Proc. AMS, 136 (2008), 963-972