This website documents SPP 2026, a coordinated research programme in mathematics funded by the German Research Foundation (DFG). The programme comprised 80 research projects in the fields of differential geometry, geometric topology, and global analysis. More than 80 researchers, ranging from doctoral candidates to professors and based at more than 20 universities in Germany and Switzerland, participated in the programme.

SPP 2026 concluded on 30 June 2026. This website is maintained as an archive of the programme and its research activities.