# Full Seminar Archive

Our regular seminar program covers a broad range of topics from applied mathematics, pure mathematics and statistics. All staff and students are welcome.
This page has a complete list of past seminars and a list restricted by year can be accessed via the left-hand menu.

*Yang Liu - The Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste*

Modeled on spectral geometry of Riemannian manifolds, the asymptotic expansion of the heat operator of a geometric elliptic operator provides a functional analytic approach to detect local...

*Sylvie Paycha - University of Potsdam, on leave from the University Clermont-Auvergne*

According to the principle of locality in physics, events taking place at different locations should behave independently, a feature expected to be reflected in the measurements. In quantum field ...

*Christian Le Merdy - Laboratoire de Mathématiques, Université de Franche-comté, Besançon*

Let $T\colon L^p(\mathcal{M})\to L^p(\mathcal{N})$ be a bounded operator between two noncommutative $L^p$-spaces, $1< p<\infty$. We say that $T$ is $\ell^1$-bounded (resp. $\ell^1$-contractive...

*Jinghao Huang - University of New South Wales*

The study of operator Holder functions has a long history and plays an important role in the perturbation theory of linear operators on a Hilbert space. The starting point is the so-called Powers--...

*Raphael Ponge - Sichuan University, China*

Noncommutative tori are ubiquitous examples of noncommutative spaces. Following the seminal work of Connes-Tretkoff, Connes-Moscovici, and others a differential geometric apparatus is currently being...

19 July 2019 - Spectral properties of the regular boundary value problems for differential equations

*Tynysbek Kalmenov - Vice President of Mathematical Society of Kazakhstan, Institute of Mathematics and Mathematical Modeling, Almaty, Kazakhstan*

We discuss the spectral properties of a linear operator generated by a differential expression and the boundary conditions. We also consider operators, which are the correct extensions of a minimal...

*Marius Junge - University of Illinois at Urbana-Champaign*

We will develop a new aspect of Bakry-Emry theory for sublaplacians on compact manifold with applications to concentration inequalities for matrix-valued functions. This is joint work with Haojian Li...

*Nigel Higson - Penn State University*

Early in his career, Hermann Weyl studied and solved the problem of decomposing a function on a half-line as a continuous combination of the eigenfunctions of a Sturm-Liouville operator with...

*Jan Rozendaal - Australian National University and Institute of Mathematics, Polish Academy of Sciences*

It is well known that the solution operators $\cos(t\sqrt{-\Delta})$ and $\sin(t\sqrt{-\Delta})$ to the wave equation $\partial_{t}^{2}u=\Delta u$ are not bounded on $L^{p}(\mathbb{R}^{n})$, for $n\...

*Matthias Lesch - Mathematisches Institut, Universität Bonn*

We state a generalization of the Connes–Tretkoff–Moscovici Rearrangement Lemma and give a surprisingly simple (almost trivial) proof of it. Secondly, we put on a firm ground the multivariable...