Harald Grobner participates at the SFB Lecture “Higher Invariants: Interactions between Arithmetic Geometry and Global Analysis” at the University Regensburg, Germany, Nov 18, 2025.   Talk: “New phenomena in the cohomology of SL(n,Z)”.

Mohamed Ez-Zarraq participates at the Workshop “Arithmetica Transalpina” (F. Andreatta, H. Grobner, D. Loeffler, M. Longo, S. Vigni, S. Zerbes) at the UniDistance Suisse (Brig, Swizzerland), Oct 17, 2025.

Co-organization of Harald Grobner of the semi-annual meeting “Arithmetica Transalpina” together with F Andreatta, D Loeffler, M Longo, S Vigni, S Zerbes at the UniDistance Suisse (Brig, Swizzerland), Oct 17, 2025