In this first MATH+ talk of 2025, Chevyrev will present the key concepts underlying this field and present several surprising applications. Ilya Chevyrev is a Reader at the University of Edinburgh and a Mercator Fellow at TU Berlin.

In this talk, Roman Sauer will give a gentle introduction to property T and its more recent higher-dimensional analogs. A particular focus will be put on the geometric applications Roman Sauer is professor of mathematics at the Karlsruhe Institute of Technology (KIT) and speaker of the DFG-funded research training group "Asymptotic Invariants and Limits of Groups and Spaces" (RTG 2229) run jointl...

The next MATH+ Friday talk of this winter semester is a Kovalevskaya Colloquium on undecidable problems in group theory. Laura Ciobanu is Professor at the Heriot-Watt University in Edinburgh and Co-director of the Maxwell Institute.

While others are hiding chocolates, the MATH+ Advent Calendar (available in English and German) challenges you with mathematical brainteasers! The 24 challenges in the MATH+ Advent Calendar invite you to dive into MATH+ research projects. Join in and have fun!

Wissenschaftler*innen der Mathematik-Exzellenzcluster aus Berlin (MATH+), Bonn (Hausdorff Center for Mathematics) und Münster (Mathematik Münster) zeigen in Workshops, einer Talkrunde und Vorträgen wie vielfältig und faszinierend Mathematik ist. Als besondere Zugabe gibt es eine Stunde Mathe-Quizspiel ab 18 Uhr mit Knobel- Wissensfragen aus der Forschung der drei Cluster.

The next MATH+ Friday Colloquium of the winter semester 2024/25 is not a usual Friday talk, but a full-day event called “A Day of Arithmetic Geometry". On the occasion of Jürg Kramer's retirement, there will be four talks by outstanding speakers: Ana Maria Botero (Bielefeld), José Ignacio Burgos Gil (Madrid), Jean-Benoît Bost (Orsay) and Maryna Viazovska (Lausanne).