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Quantitative and Qualitative Estimates on the Norm of Products of Polynomials
Israel Journal of Mathematics ( IF 1 ) Pub Date : 2020-03-01 , DOI: 10.1007/s11856-020-1987-y
Gustavo Araújo , Per H. Enflo , Gustavo A. Muñoz-Fernández , Daniel L. Rodríguez-Vidanes , Juan B. Seoane-Sepúlveda

When for the first time, in 1987, a Banach space X and a bounded operator T : X → X without nontrivial invariant subspaces was constructed, one of the many tools used was a series of estimates on the norm of a product of polynomials. Here, we continue this study of estimates on the norm of a product of polynomials by, on the one hand, extending some results due to Beauzamy and Enflo and, on the other, observing that an inequality by Borwein and Erdelyi holds in a more general context.

中文翻译:

多项式乘积范数的定量和定性估计

1987 年第一次构建了一个 Banach 空间 X 和一个有界算子 T : X → X 没有非平凡不变子空间时,使用的众多工具之一是对多项式乘积的范数的一系列估计。在这里,我们继续研究多项式乘积范数的估计,一方面扩展了 Beauzamy 和 Enflo 的一些结果,另一方面观察 Borwein 和 Erdelyi 的不等式在更一般的情况下成立语境。
更新日期:2020-03-01
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