3 papers
math.FA2026
Dunford-Pettis Multilinear Operators and their variations: A revisit to the classic concepts of Operator Ideals
Joilson Ribeiro, Fabricio Santos
In this paper, we will address broader concepts for Dunford-Pettis operators, presenting new classes and results that correlate this class with others already well-studied in the l…
math.FA2026
Demi Weakly Dunford-Pettis on Banach Spaces
Joilson Ribeiro, Fabricio Santos
In this paper, our main goal is to define the class of weakly Demi Dunford-Pettis applications. We also study their relationship with the classes of weakly Dunford-Pettis and Demi…
math.FA2024
A note on Basis Problem in normed spaces
Vinicius Coelho, Joilson Ribeiro, Luciana Salgado
In this work, we prove the criterion of Banach-Grunblum and the principle of selection of Bessaga-PeÅczyÅski for normed spaces. As applications of these results, we show the Prin…