Octahedral norms in tensor products of Banach spaces
J Langemets, V Lima… - The Quarterly Journal of …, 2017 - academic.oup.com
We continue the investigation of the behaviour of octahedral norms in tensor products of
Banach spaces. First, we will prove the existence of a Banach space Y such that the injective …
Banach spaces. First, we will prove the existence of a Banach space Y such that the injective …
Almost square and octahedral norms in tensor products of Banach spaces
J Langemets, V Lima, A Rueda Zoca - Revista de la Real Academia de …, 2017 - Springer
The aim of this note is to study some geometrical properties like diameter two properties,
octahedrality and almost squareness in the setting of (symmetric) tensor product spaces. In …
octahedrality and almost squareness in the setting of (symmetric) tensor product spaces. In …
Octahedrality in Lipschitz-free Banach spaces
JB Guerrero, G López-Pérez, AR Zoca - Proceedings of the Royal …, 2018 - cambridge.org
The aim of this note is to study octahedrality in vector-valued Lipschitz-free Banach spaces
on a metric space, under topological hypotheses on it, by analysing the weak-star strong …
on a metric space, under topological hypotheses on it, by analysing the weak-star strong …
[PDF][PDF] Geometrical structure in diameter 2 Banach spaces
J Langemets - Dissertationes Mathematicae …, 2015 - johannlangemets.wordpress.com
We investigate diameter 2 properties in Banach spaces, and related notions and properties
such as the octahedrality of the norm, almost square Banach spaces, and thickness and …
such as the octahedrality of the norm, almost square Banach spaces, and thickness and …
[HTML][HTML] Some results on almost square Banach spaces
JB Guerrero, G López-Pérez, AR Zoca - Journal of Mathematical Analysis …, 2016 - Elsevier
We study almost square Banach spaces under a topological point of view. Indeed, we prove
that the class of Banach spaces which admits an equivalent norm to be ASQ is that of those …
that the class of Banach spaces which admits an equivalent norm to be ASQ is that of those …
Stability of average roughness, octahedrality, and strong diameter properties of Banach spaces with respect to absolute sums
R Haller, J Langemets, R Nadel - 2018 - projecteuclid.org
We prove that, if Banach spaces X and Y are δ-average rough, then their direct sum with
respect to an absolute norm N is δ/N (1, 1)-average rough. In particular, for octahedral X and …
respect to an absolute norm N is δ/N (1, 1)-average rough. In particular, for octahedral X and …
Non-rough norms and dentability in spaces of operators
S Seal, S Basu, JB Guerrero, JMV Yeguas - arXiv preprint arXiv …, 2022 - arxiv.org
In this work, we study non-rough norms in L (X, Y), the space of bounded linear operators
between Banach spaces X and Y. We prove that L (X, Y) has non-rough norm if and only if …
between Banach spaces X and Y. We prove that L (X, Y) has non-rough norm if and only if …
Banach spaces which always produce octahedral spaces of operators
A Rueda Zoca - Collectanea Mathematica, 2024 - Springer
We characterise those Banach spaces X which satisfy that L (Y, X) is octahedral for every
non-zero Banach space Y. They are those satisfying that, for every finite dimensional …
non-zero Banach space Y. They are those satisfying that, for every finite dimensional …
Rough norms in spaces of operators
R Haller, J Langemets… - Mathematische …, 2017 - Wiley Online Library
We investigate sufficient and necessary conditions for the space of bounded linear operators
between two Banach spaces to be rough or average rough. Our main result is that is δ …
between two Banach spaces to be rough or average rough. Our main result is that is δ …
Attaining strong diameter two property for infinite cardinals
We extend the (attaining of) strong diameter two property to infinite cardinals. In particular, a
Banach space has the 1-norming attaining strong diameter two property with respect to ω (1 …
Banach space has the 1-norming attaining strong diameter two property with respect to ω (1 …