Date 
 | 
      Speaker 
 | 
      Title 
 | 
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
      20.10.2025 
 | 
      Chen Ping | 
      The point of departure: singular cohomology | 
    
      27.10.2025 
       | 
      Stefan Schröer | 
      Etale morphisms, Grothendieck topologies, and sites | 
    
    
      10.11.2025 
       | 
      Jack Ritschel | 
      Etale cohomology and Galois cohomology | 
    
      17.11.2025 
 | 
      Fabian Rodatz
 | 
      Picard groups, Brauer groups, and Hilbert 90
 | 
    
    
      24.11.2025 
 | 
       Julian Reichardt | 
      Betti numbers, l-adic cohomology, and cycle classes | 
    
   
    
      01.12.2025 
 | 
      Andreas Bode
 | 
      The Base Change Theorem for proper morphisms
 | 
    
      08.12.2025 
       | 
      Hugo Zock
 | 
      The Base Change Theorem by smooth morphisms I
 | 
    
    
    
    
      15.12.2025 
 | 
       Vicente Monreal
 | 
      The Base Change Theorem by smooth morphisms II
 | 
    
    
    
      05.01.2026 
       | 
      Stefan Schröer
 | 
      K3 surfaces
 | 
      12.01.2026 
       | 
      Otto Overkamp
 | 
      Point counting
 |