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Jochen Wengenroth
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Let $ c_{o}:=\lbrace x:\mathbb{N}\rightarrow \rightarrow\mathbb{R} :lim_{j\rightarrow\infty} x_{j}=0,sup_{j}\vert x_{j}\vert <\infty \rbrace$$ c_{0}:=\lbrace x:\mathbb{N}\rightarrow \mathbb{R} :\lim_{j\rightarrow\infty} x_{j}=0 \rbrace$ denote the usual Banach sequence spaces. Given Banach spaces X,Y$X,Y$ let L(X,Y)$L(X,Y)$ denote the Banach space of bounded, linear operators from X$X$ to Y$Y$ . Also let $ \ell_{1} :=\lbrace x:\mathbb{N}\rightarrow \rightarrow\mathbb{R} :\Sigma_{j=1}^{\infty}\vert x_{j}\vert <\infty \rbrace$$ \ell_{1} :=\lbrace x:\mathbb{N}\rightarrow \mathbb{R} :\Sigma_{j=1}^{\infty}\vert x_{j}\vert <\infty \rbrace$.

is $ c_{0} $ isometrically embedding in $ L(c_{0},\ell_{1}) $ ?

Let $ c_{o}:=\lbrace x:\mathbb{N}\rightarrow \rightarrow\mathbb{R} :lim_{j\rightarrow\infty} x_{j}=0,sup_{j}\vert x_{j}\vert <\infty \rbrace$ denote the usual Banach sequence spaces. Given Banach spaces X,Y let L(X,Y) denote the Banach space of bounded, linear operators from X to Y . Also let $ \ell_{1} :=\lbrace x:\mathbb{N}\rightarrow \rightarrow\mathbb{R} :\Sigma_{j=1}^{\infty}\vert x_{j}\vert <\infty \rbrace$

is $ c_{0} $ isometrically embedding in $ L(c_{0},\ell_{1}) $ ?

Let $ c_{0}:=\lbrace x:\mathbb{N}\rightarrow \mathbb{R} :\lim_{j\rightarrow\infty} x_{j}=0 \rbrace$ denote the usual Banach sequence spaces. Given Banach spaces $X,Y$ let $L(X,Y)$ denote the Banach space of bounded, linear operators from $X$ to $Y$ . Also let $ \ell_{1} :=\lbrace x:\mathbb{N}\rightarrow \mathbb{R} :\Sigma_{j=1}^{\infty}\vert x_{j}\vert <\infty \rbrace$.

is $ c_{0} $ isometrically embedding in $ L(c_{0},\ell_{1}) $ ?

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embeds in $ L(c_{0},\ell_{1}) $

Let $ c_{o}:=\lbrace x:\mathbb{N}\rightarrow \rightarrow\mathbb{R} :lim_{j\rightarrow\infty} x_{j}=0,sup_{j}\vert x_{j}\vert <\infty \rbrace$ denote the usual Banach sequence spaces. Given Banach spaces X,Y let L(X,Y) denote the Banach space of bounded, linear operators from X to Y . Also let $ \ell_{1} :=\lbrace x:\mathbb{N}\rightarrow \rightarrow\mathbb{R} :\Sigma_{j=1}^{\infty}\vert x_{j}\vert <\infty \rbrace$

is $ c_{0} $ isometrically embedding in $ L(c_{0},\ell_{1}) $ ?