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arXiv · 1904.11887

Arestov's theorems on Bernstein's inequality

Tamás Erdélyi
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Abstract

We give a simple, elementary, and at least partially new proof of Arestov's famous extension of Bernstein's inequality in $L_p$ to all $p \geq 0$. Our crucial observation is that Boyd's approach to prove Mahler's inequality for algebraic polynomials $P_n \in {\mathcal P}_n^c$ can be extended to all trigonometric polynomials $T_n \in {\mathcal T}_n^c$.

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Tamás Erdélyi. 2019-04-26. Arestov's theorems on Bernstein's inequality. https://arxiv.org/abs/1904.11887

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