A Note on Lawton's Theorem

作者:Dobrowolski Edward*
来源:Canadian Mathematical Bulletin, 2017, 60(3): 484-489.
DOI:10.4153/CMB-2016-066-x

摘要

We prove Lawton's conjecture about the upper bound on the measure of the set on the unit circle on which a complex polynomial with a bounded number of coefficients takes small values. Namely, we prove that Lawton's bound holds for polynomials that are not necessarily monic. We also provide an analogous bound for polynomials in several variables. Finally, we investigate the dependence of the bound on the multiplicity of zeros for polynomials in one variable.

  • 出版日期2017-9