Mittagsseminar (by J. Lengler, K. Bringmann, B. Gärtner, M. Hoffmann, R. Kyng, D.Steurer, V. Traub)

Date and Time: Thursday, February 26, 2026, 12:15 pm

Duration: 30 minutes

Location: OAT S15

Speaker: Patrick Schnider

Separoids and generalizations of outerplanarity

In this talk I will introduce the combinatorial framework of Separoids, which is a way to capture how sets in d-dimensional Euclidean space can be separated. In particular, I will focus on so-called witnesses of separoids and their relation to linear embeddings of simplicial complexes. This will allow us to give a higher-dimensional generalization of the fact that K_4 is not outerplanar.

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