activity
20122023
most citedMaximal left ideals of the Banach algebra of bounded operators on a Banach space

9 citations · 34 across the 12 of their papers we have counts for

collaborators
Showing 2015Show all

2 papers · 1 filter

math.FA2015

Direct sums and summability of the Szlenk index

Szymon Draga, Tomasz Kochanek

We prove that the -sum of separable Banach spaces with uniformly summable Szlenk index has summable Szlenk index, whereas this result is no longer valid for more general direc…

math.FA2015★ 7 cited

Uncountable sets of unit vectors that are separated by more than 1

Tomasz Kania, Tomasz Kochanek

Let be a Banach space. We study the circumstances under which there exists an uncountable set of unit vectors such that for distinct $x,y\in \…