P. Koszmider

activity

20082026

most citedThin-very tall compact scattered spaces which are hereditarily separable

19 citations · 125 across the 36 of their papers we have counts for

collaborators

Showing 2016 · math.OAShow all

3 papers · 2 filters

math.OA2016

Noncommutative Cantor-Bendixson derivatives and scattered $C^{*}$ -algebras

Saeed Ghasemi, Piotr Koszmider

We analyze the sequence obtained by consecutive applications of the Cantor-Bendixson derivative for a noncommutative scattered $C^{*}$ -algebra $A$ , using the ideal $\mathcal…

math.OA2016

An extension of compact operators by compact operators with no nontrivial multipliers

Saeed Ghasemi, Piotr Koszmider

We construct an essential extension of $K (ℓ_{2} (c))$ by $K (ℓ_{2})$ , where $c$ denotes the cardinality of continuum, i.e., a $C^{*}$ -alge…

math.OA2016★ 9 cited

A note on the Akemann-Doner and Farah-Wofsey constructions

Tristan Bice, Piotr Koszmider

We remove the assumption of the continuum hypothesis from the Akemann-Doner construction of a non-separable $C^{*}$ -algebra $A$ with only separable commutative $C^{*}$ -subalgebras. We…

Noncommutative Cantor-Bendixson derivatives and scattered C∗-algebras

An extension of compact operators by compact operators with no nontrivial multipliers

A note on the Akemann-Doner and Farah-Wofsey constructions

Noncommutative Cantor-Bendixson derivatives and scattered $C^{*}$ -algebras