1 Correction to: Analysis and Mathematical Physics https://doi.org/10.1007/s13324-019-00294-x
In this addendum to the paper On Bernstein’s inequality for polynomials [Anal. Math. Phys. online 20 March 2019], we rectify the beginning of Section 5 where we mentioned a proof of Mahler’s result, i.e. the case \(p=0\) in Bernstein’s inequality, using subharmonicity. In particular, we take into account a reference that we previously missed, and that Paul Nevai, whom we thank, has very recently brought to our attention.
2 Case \(p=0\), Mahler’s result
This section (as well as Section 6) owes much to old conversations with Nazarov [3] during the fall of 1994, when the first-named author was finishing the joint work [4] with B. Saffari. F. Nazarov then emphasized the importance of subharmonicity.
The possible use of this subharmonicity was first alluded to by the referee (M. Marden) of Mahler’s 1961 paper [2]. But then it was also intensively used in the 1989 paper [1], which fully reproved Bernstein’s inequality in \(L^0\) and then in \(L^p, 0<p\le \infty \). The authors of the implied survey paper were not aware of [1] when their work was accepted in “Analysis and Mathematical Physics” and were informed of this important paper by P. Nevai , whom they thank, very shortly after their work appeared in arXiv. They apologize for this overview.
References
von Golitschek, A., Lorentz, G.G.: Bernstein’s inequalities in \(L_p, 0\le p\le \infty \), Rocky Mountain. J. Math. 19, 145–156 (1989)
Mahler, K.: On the zeros of the derivative of a polynomial. Proc. R. Soc. Lond. Ser. A 264, 145–154 (1961)
Nazarov, F.: Private communication (1994)
Queffélec, H., Saffari, B.: On Bernstein’s inequality and Kahane’s ultraflat polynomials. J. Fourier Anal. Appl. 2(6), 519–582 (1996)
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Queffélec, H., Zarouf, R. Correction to: On Bernstein’s inequality for polynomials. Anal.Math.Phys. 9, 1209–1210 (2019). https://doi.org/10.1007/s13324-019-00306-w
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DOI: https://doi.org/10.1007/s13324-019-00306-w