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# Wydawnictwa / Czasopisma IMPAN / Studia Mathematica / Wszystkie zeszyty

## A Gowers tree like space and the space of its bounded linear operators

### Tom 190 / 2009

Studia Mathematica 190 (2009), 233-281 MSC: 46B20, 46B26. DOI: 10.4064/sm190-3-2

#### Streszczenie

The famous Gowers tree space is the first example of a space not containing $c_0$, $\ell _1$ or a reflexive subspace. We present a space with a similar construction and prove that it is hereditarily indecomposable (HI) and has $\ell _2$ as a quotient space. Furthermore, we show that every bounded linear operator on it is of the form $\lambda I+W$ where $W$ is a weakly compact (hence strictly singular) operator.

#### Autorzy

• Giorgos PetsoulasDepartment of Mathematics
Faculty of Applied Sciences
National Technical University of Athens
Zografou Campus
157 80, Athens, Greece
e-mail
• Theocharis RaikoftsalisDepartment of Mathematics
Faculty of Applied Sciences
National Technical University of Athens
Zografou Campus
157 80, Athens, Greece
e-mail

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