Fully summing multilinear and holomorphic mappings into Hilbert spaces

Número: 
65
Ano: 
2002
Autor: 
Daniel M. Pellegrino
Marcela L. V. Souza
Abstract: 

It is known that whenever $E_{1}$, \dots, $E_{n}$ are infinite dimensional $\mathcal{L}_{\infty}$-spaces and $F$ is any infinite dimensional Banach space, there exists a bounded $n$-linear mapping that fails to be absolutely $(1;2)$-summing. In this paper we obtain a sufficient condition in order to assure that a given $n$-linear mapping $T$ from infinite dimensional $\mathcal{L}_{\infty}$-spaces into an infinite dimensional Hilbert space is absolutely $(1;2)$-summing. Besides, we also give a sufficient condition in order to obtain a fully $(1;1)$-summing multilinear mapping from $l_{1}\times \ldots \times l_{1}\times l_{2}$ into an infinite dimensional Hilbert space. In the last section we introduce the concept of fully summing holomorphic mappings and give the first examples of this kind of maps.

Mathematics Subject Classification 2000 (MSC 2000): 
Primary 46G25; Secondary 46G20; 46B15
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