3 papers
math.FA2026
Dual Banach spaces with the ball-covering property
Johann Langemets, Emma Mõttus, Natalia Saealle
We study ball-covering properties of dual Banach spaces and their connections with the geometry of predual unit balls. One of our main results shows that, for every separable Banac…
math.FA2026
Transfinite Daugavet property
Antonio Avilés, Johann Langemets, Miguel MartÃn +1
We extend the Daugavet property and a perfect version of it to transfinite cardinals in order to distinguish between spaces with the ordinary Daugavet property by some kind of comp…
math.FA2025
The super Alternative Daugavet property for Banach spaces
Johann Langemets, Marcus Lõo, Miguel MartÃn +2
We introduce the super alternative Daugavet property (super ADP) which lies strictly between the Daugavet property and the Alternative Daugavet property as follows. A Banach space…