An exploration of the size of chaotic phenomena for composition operators through lineability and spaceability. Martina Maiuriello (Università degli studi della Campania Luigi Vanvitelli).

Mar 28, 2023 | IUMPA seminar, News

Motivated by recent studies on the notions of lineability and spaceability in the context of linear dynamics, in this talk we shall investigate the “vastness” of chaotic phenomena in the context of linear operators, with a special focus on composition...

The derived categories of the LB-spaces. Sven-Ake Wegner (University of Hamburg).

Mar 22, 2023 | IUMPA seminar, News

Let LB be the category of LB-spaces, which has as objects precisely those Hausdorff locally convex spaces that can be written as a countable inductive limit of Banach spaces, and as morphisms the continuous linear maps between them. In the talk we will firstly review...

Isomorphic copies of l_∞ in the weighted Hardy spaces on the unit disc. Radoslaw Szwedek, Adam Mickiewicz University, Poznan.

Mar 9, 2023 | IUMPA seminar, News

In this lecture, we shall discuss a question whether the density of analytic polynomials in an H-admissible space is sufficient to the minimality of the space? This question has a purely foundational background, relating fundamental concepts from the theory of Hp...

Linear dynamics of operators on non-metrizable topological vector spaces. Vinícius V. Fávaro, Universidade Federal de Uberlândia, Brasil.

Mar 8, 2023 | IUMPA seminar, News

In this talk we will explore the following notions of chaos for operators on non-metrizable topological vector spaces: mixing, hypercyclicity, cyclicity, n-supercyclicity, Li-Yorke chaos  and Devaney chaos. We will discuss the main differences between these...

Local Entropy and Applications. Udayan B. Darji, University of Louisville, EEUU.

Mar 7, 2023 | IUMPA seminar, News

In this talk, we introduce basic of local entropy theory and discuss how it can be applied in various settings in topological dynamics. We pay particular attention to Uniformly Positive Entropy and Complete Positive Entropy introduced by Blanchard in 90’s. Whereas...