**2023**

- Applied Category Theory 2023, contributed talk: “
*Chopping things up to decide stuff fast*“. - FPT Fest in Honor of Mike Fellows,
**invited**speaker for the minisymposium on tree-width organized by Dimitrios Thilikos. Title: “*Chopping things up to decide stuff fast*“. - University of Nottingham international seminar series on applications of category theory to finite model theory and computer science. Title: “
*Chopping things up to decide stuff fast*“, Nottingham, UK - 54th Southeastern International Conference on Combinatorics, Graph Theory & Computing, Title: “
*Chopping things up to decide stuff fast*“, Boca Raton, Florida, USA - Joint Mathematics Meeting 2023, Title: “
*Structured Decompositions: recursive data and recursive algorithms*“, Boston Massachusetts

**2022**

- Combinatorics Seminar, Title: “
*Graph Decompositions go Categorical*“, University of Florida, Gainesville, Florida, USA - AlGCo seminar in Montpellier; Title: “
*Structured Decompositions: recursive data and recursive algorithms*” (**invited,**Thursday September 25th at 10am German time; click**here**for the zoom link to attend) - European Symposium on Algorithms; Title: “
*Search space redution via essential vertices*” (September 5th) - Mainz Algorithm Seminar —
*Week-long introduction to Applied Category Theory*(**invited**, August 8th-12th) - APGA 2022, Calpe, Spain — Advances in Parameterized Algorithms (
**invited**, May2nd -6th) - Resarch visit at the University of Hamburg with Karl Heuer (
**invited**, April 4th-8th)

**2021**

- Darmstadt Algorithms Seminar (
**Invited**, December 15th) - ACPMS Algebraic and Combinatorial perspectives in the mathematical sciences (
**invited**, upcoming: Dec. 3rd 2021) - University of Glasgow – Formal Analysis, Theory & Algorithms (
**invited**, upcoming: Nov. 23rd 2021) - TU Ilmenau combinatorics seminar – Fachgebiet Large Networks and Random Graphs (
**invited**, - Graphes en Rhône Alpes Auvergne (Grenoble and Clermont-Ferrand joint seminar on graph theory and algorithms) (
**invited**) - Category Theory CT20->21 conference; you can
**watch the video recording here.** - IWOCA 2021: 32nd International Workshop on Combinatorial Algorithms (
**best paper award**) - British Combinatorial Conference 2021
- TU Berlin: Algorithmik und Komplexitätstheorie research group (
**invited**) - Dagstuhl Seminar on ‘Temporal Graphs: Structure, Algorithms, Applications‘ (
**invited**, 25. – 30. April) A recording of this talk is available on YouTube; you can find it**here**. - IBS Discrete Mathematics Group (DIMAG), Daejeon, South Korea: Virtual Discrete Math Colloquium (
**invited**) - British Colloquium on Theoretical Computer Science (link to schedule here) 2021
- University of Birmingham: Study group in Graph Theory, Topology and Algorithms (
**invited**) - TU Berlin: Logic and Semantics Research Group (
**invited**) - Karlsruhe IT: discrete math seminar (
**invited**)

**2020 **– Alea iacta est

- Karlsruhe IT: discrete math seminar (
**invited**)

**2019**

- British Colloquium on Theoretical Computer Science & AlgoUK
- Scottish Combinatorics Meeting
- Postgraduate Combinatorial Conference
- British Combinatorial Conference

**2018**

- Postgraduate Combinatorics Conference
- AlgoUK
- British Combinatorics Conference
- Oxford one day meeting in Combinatorics
- Scottish Combinatorics Meeting
- British Combinatorial Colloquium