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Article

Keywords:
spaces of weakly compact operators; complemented copies of $c_0$
Summary:
We show that as soon as $c_0$ embeds complementably into the space of all weakly compact operators from $X$ to $Y$, then it must live either in $X^\ast$ or in $Y$.
References:
[BP] Bessaga C., Pelczynski A: On bases and unconditional convergence of series in Banach spaces. Studia Math. 17 (1958), 151-164. MR 0115069 | Zbl 0084.09805
[D] Diestel J.: Sequences and Series in Banach Spaces. Graduate Text in Mathematics 97, Springer Verlag 1984. MR 0737004
[E1] Emmanuele G.: Dominated operators on $C[0,1]$ and the $(CRP)$. Collect. Math. 41 (1990), 21-25. MR 1134442 | Zbl 0752.47006
[E2] Emmanuele G.: Remarks on the uncomplemented subspace $W(E,F)$. J. Funct. Analysis 99 (1991), 125-130. MR 1120917 | Zbl 0769.46006
[E3] Emmanuele G.: On the containment of $c_0$ by spaces of compact operators. Bull. Sci. Math. 115 (1991), 177-184. MR 1101022
[E4] Emmanuele G.: A remark on the containment of $c_0$ in spaces of compact operators. Math. Proc. Cambridge Phil. Soc. 111 (1992), 331-335. MR 1142753
[E5] Emmanuele G.: On complemented copies of $c_0$ in spaces of operators. Comm. Math. 32 (1992), 29-32. MR 1202755
[E6] Emmanuele G.: About the position of $K_{w^\ast}(X^\ast,Y)$ in $L_{w^\ast}(X^\ast,Y)$. Atti Sem. Mat. Fisico Univ. Modena, to appear. MR 1282327
[EJ] Emmanuele G., John K.: Uncomplementability of spaces of compact operators in larger spaces of operators. to appear. MR 1435603 | Zbl 0903.46006
[F] Feder M.: On subspaces of spaces with an unconditional basis and spaces of operators. Illinois J. Math. 34 (1980), 196-205. MR 0575060 | Zbl 0411.46009
[H] Holub J.R.: Tensor product bases and tensor diagonals. Trans. Amer. Math. Soc. 151 (1970), 563-579. MR 0279564 | Zbl 0216.16203
[K] Kalton N.J.: Spaces of compact operators. Math. Annalen 208 (1974), 267-278. MR 0341154 | Zbl 0266.47038
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