Visitors

Guests and Research Visitors in 2026

Christian StumpRuhr University Bochum, Germany28.04.2026Talk: Polynomials are great combinatorial invariants
Oswin AichholzerGraz University of Technology, Austria15.09. - 18.09.2025Talk: Flips in plane graphs (joint talk with Joseph Dorfer)
Joseph DorferGraz University of Technology, Austria15.09. - 19.09.2025Talk: Flips in plane graphs (joint talk with Oswin Aichholzer)
Arturo MerinoUniversidad de O’Higgins, Chile15.09. - 19.09.2025Talk: Set selection under uncertainty: Non-adaptive queries and thresholds
Petr GregorCharles University, Czech Republic08.09. - 12.09.2025 
Christoph HertrichUniversity of Technology Nuremberg, Germany07.07. - 10.07.2025Talk: Understanding neural network expressivity via polyhedral geometry
Martin WinterTU Berlin, Germany10.06. - 11.06.2025Talk: Adjoint degrees and scissors congruence for polytopes
Jean CardinalUniversité libre de Bruxelles, Belgium26.05. - 30.05.2025Talk: Shortest paths on polymatroids and hypergraphic polytopes
Johannes CarmesinTU Freiberg, Germany06.05. - 09.05.2025Talk: Open problems in graph theory
Linda Kleist

University of Hamburg, Germany

(then University of Potsdam, Germany)

10.03. - 12.03.2025Talk: Online sorting and translational packing of convex polygons
Felix JoosHeidelberg University, Germany10.02. - 11.02.2025Talk: The hypergraph removal process
Hung HoangUniversity of Vienna, Austria13.01. - 17.01.2025Talk: Signotopes with few plus signs
Pascal SchweitzerTechnical University of Darmstadt, Germany02.12.2024Colloquium: Recent insights surrounding combinatorial approaches to isomorphism and symmetry problems
Torsten UeckerdtKarlsruhe Institute of Technology, Germany12.11.2024Talk: Flipping non-crossing spanning trees on convex point sets
Petr GregorCharles University Prague, Czech Republic10.06. - 14.06.2024 
Arturo MerinoUniversidad de O'Higgins, Chile27.05. - 07.06.2024 
Nastaran BehroozniaUniversity of Warwick, United Kingdom27.05. - 31.05.2024