Q-Math Seminar
About the Q-Math Seminar
The Q-Math Seminar is a series of seminars regularly held at the Mathematics Department of Universidad Carlos III de Madrid and the ICMAT. This is an activity carried out by the members of the Q-Math Research Group The topics discussed usually in the seminar are related with mathematical aspects of quantum theory and include:
- Differential Geometry
- Functional Analysis
- Operator Theory
- Quantum Information Theory
Upcoming seminars
Francesc Perera (UAB)
The Cuntz semigroup of $C^*$-algebras and pureness
Tuesday the 21st of April, 2026, 12:00, Sala Naranja (ICMAT)
In this talk I will define the Cuntz semigroup of a $C^*$-algebra as an analogue of the Murray-von Neumann semigroup of idempotents. I will give some classes of examples where the semigroup is computable and indicate its importance for the classification program. In the second part of the talk I will focus on certain order properties of the semigroup that yield the notion of pureness, a property that plays a prominent role in the structure of C*-algebras, and it can be thought of as tensorial absorption at the level of the semigroup by the so-called Jiang-Su algebra.Part of the talk is joint work with Ramon Antoine, Hannes Thiel, and Eduard Vilalta; and with Hannes Thiel and Eduard Vilalta.Link for online session: http://meet.google.com/nia-eqqt-utk
Samuel Fedida (Cambridge University)
TBA
Tuesday the 12th of May, 2026, TBD, ICMAT
TBA
Ana Ros Camacho
TBA
Monday the 18th of May, 2026, TBD, ICMAT
TBA