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# Multipliers on Vector Valued Bergman Spaces

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http://dx.doi.org/10.4153/CJM-2002-044-3
Canad. J. Math. 54(2002), 1165-1186
Published:2002-12-01
Printed: Dec 2002
• Oscar Blasco
• José Luis Arregui
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## Abstract

Let $X$ be a complex Banach space and let $B_p(X)$ denote the vector-valued Bergman space on the unit disc for $1\le p<\infty$. A sequence $(T_n)_n$ of bounded operators between two Banach spaces $X$ and $Y$ defines a multiplier between $B_p(X)$ and $B_q(Y)$ (resp.\ $B_p(X)$ and $\ell_q(Y)$) if for any function $f(z) = \sum_{n=0}^\infty x_n z^n$ in $B_p(X)$ we have that $g(z) = \sum_{n=0}^\infty T_n (x_n) z^n$ belongs to $B_q(Y)$ (resp.\ $\bigl( T_n (x_n) \bigr)_n \in \ell_q(Y)$). Several results on these multipliers are obtained, some of them depending upon the Fourier or Rademacher type of the spaces $X$ and $Y$. New properties defined by the vector-valued version of certain inequalities for Taylor coefficients of functions in $B_p(X)$ are introduced.

MSC Classifications:  42A45 - Multipliers 46E40 - Spaces of vector- and operator-valued functions
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