W. Johnson

activity

19922021

most citedClosed ideals of operators on and complemented subspaces of Banach spaces of functions with countable support

12 citations · 42 across the 26 of their papers we have counts for

collaborators

Showing 1994Show all

2 papers · 1 filter

math.FA1994★ 3 cited

Extension of Operators from Weak $^{*}$ -closed Subspaces of $ℓ_{1}$

William B. Johnson, M. Zippin

It is proved that every operator from a weak $^{*}$ -closed subspace of $ℓ_{1}$ into a space $C (K)$ of continuous functions on a compact Hausdorff space $K$ can be extended to an oper…

math.FA1994

Banach spaces with the $2$ -summing property

Alvaro Arias, Tadek Figiel, William B. Johnson +1

A Banach space $X$ has the $2$ -summing property if the norm of every linear operator from $X$ to a Hilbert space is equal to the $2$ -summing norm of the operator. Up to a point, th…

Extension of Operators from Weak∗-closed Subspaces of ℓ1​

Banach spaces with the 2-summing property

Extension of Operators from Weak $^{*}$ -closed Subspaces of $ℓ_{1}$

Banach spaces with the $2$ -summing property