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Dominated and absolutely summing operators on the space \(\,C_{rc}(X,E)\) of vector-valued continuous functions

  • Marian Nowak

摘要

Let X be a completely regular Hausdorff space and E and F be Banach spaces. Let \(C_{rc}(X,E)\) C rc ( X , E ) denote the Banach space of all continuous functions \(f:X\rightarrow E\) f : X E such that f(X) is a relatively compact set in E, and \(\beta _\sigma \) β σ be the strict topology on \(C_{rc}(X,E)\) C rc ( X , E ) . We characterize dominated and absolutely summing operators \(T:C_{rc}(X,E)\rightarrow F\) T : C rc ( X , E ) F in terms of their representing operator-valued Baire measures. It is shown that every absolutely summing \((\beta _\sigma ,\Vert \cdot \Vert _F)\) ( β σ , · F ) -continuous operator \(T:C_{rc}(X,E)\rightarrow F\) T : C rc ( X , E ) F is dominated. Moreover, we obtain that every dominated operator \(T:C_{rc}(X,E)\rightarrow F\) T : C rc ( X , E ) F is absolutely summing if and only if every bounded linear operator \(U:E\rightarrow F\) U : E F is absolutely summing.