%0 Journal Article %T A Bernstein-type inequality for rational functions in weighted Bergman spaces %+ Department of Mathematics and Mechanics %+ Mathématiques Fondamentales %A Baranov, Anton %A Zarouf, Rachid %< avec comité de lecture %@ 0007-4497 %J Bulletin des Sciences Mathématiques %I Elsevier %V 137 %P 541--556 %8 2013-08-01 %D 2013 %Z 1003.5066 %K Rational function %K Bernstein-type inequality %K weighted Bergman norm %Z Primary 32A36, 26A33; Secondary 26C15, 41A10 %Z Mathematics [math]/Functional Analysis [math.FA] %Z Mathematics [math]/Complex Variables [math.CV]Journal articles %X Given $n\geq1$ and $r\in[0,\,1),$ we consider the set $\mathcal{R}_{n,\, r}$ of rational functions having at most $n$ poles all outside of $\frac{1}{r}\mathbb{D},$ were $\mathbb{D}$ is the unit disc of the complex plane. We give an asymptotically sharp Bernstein-type inequality for functions in $\mathcal{R}_{n,\, r}\:$ (as n tends to infinity and r tends to 1-) in weighted Bergman spaces with ''polynomially'' decreasing weights. We also prove that this result can not be extended to weighted Bergman spaces with ''super-polynomially'' decreasing weights. %G English %2 https://hal.science/hal-00463664v4/document %2 https://hal.science/hal-00463664v4/file/bergm-bernst-27-June.pdf %L hal-00463664 %U https://hal.science/hal-00463664 %~ LATP %~ CNRS %~ UNIV-AMU %~ EC-MARSEILLE %~ I2M %~ I2M-2014- %~ ESPE-AMU_PUBLICATIONS