Presentations at conferences, workshops or seminars

2020
How the tangible gets abstracts and vice versa: Experience from classes with mathematically gifted youth
International meeting of the APMP 18.01. – 21.01.2020, ETH Zurich, Zurich, Switzerland.
2019
Characterising k-connected sets in infinite graphs
Colloquium on Combinatorics (Kolkom) 8.11. – 9.11.2019, University of Paderborn, Paderborn, Germany.
How do we decide which mathematics is valuable: Empirical findings and philosophical thoughts
Novembertagung on the History and Philosophy of Mathematics 31.10. – 02.11.2019, Strasbourg, France; joint talk with D. Sarikaya.
Is a definition normative?
Novembertagung on the History and Philosophy of Mathematics 31.10. – 02.11.2019, Strasbourg, France; joint talk with D. Sarikaya.
Characterising k-connected sets in infinite graphs
DMV Annual meeting 23.9. – 26.9.2019, Karlsruhe Institute of Technology, Karlsruhe, Germany.
How to find suitable problems for mathematically gifted students within enrichment courses
DMV Annual meeting 23.9. – 26.9.2019, Karlsruhe Institute of Technology, Karlsruhe, Germany; joint talk with D. Sarikaya.
Forcing Hamiltonicity in locally finite graphs via forbidden induced subgraphs
Colourings, Independence and Domination (CID) 15.09. – 20.09.2019, Piechowice, Poland.
Constructing a uniquely Hamiltonian infinite graph all whose vertices and ends have degree 3
28th Workshop on Cycles and Colourings (C&C) 01.09. – 06.09.2019, Nový Smokovec, Slovakia.
Variations in open problem fields as a tool for mathematical education: from basics to open questions in 90 minutes
11th International Mathematical Creativity and Giftedness Conference (MCG11) 22.08. – 24.08.2019, Hamburg, Germany; joint workshop with D. Sarikaya.
Text-driven variation as a vehicle for generalisation, abstraction, proofs and refutations: an example about tilings and Escher within mathematical education
16th International Congress on Logic, Methodology and Philosophy and Technology (CLMPST) 05.08. – 10.08.2019, Prague, Czech Republic.
The development of epistemic objects in mathematical practice: Shaping the infinite realm driven by analogies from finite mathematics in the area of Combinatorics
16th International Congress on Logic, Methodology and Philosophy and Technology (CLMPST) 05.08. – 10.08.2019, Prague, Czech Republic.
Progress on the Ubiquity Conjecture
27th British Combinatorial Conference 29.07. – 02.08.2019, Birmingham, United Kingdom.
Variations in open problem fields as a tool for mathematical education: From basics to open questions in the twinkling of an eye
4th Interdisciplinary Scientific Conference Mathematical Transgressions 13.03. – 16.03.2019, Cracow, Poland; joint talk with D. Sarikaya.
2018
Analogical Results as Data for Theory Choice in Mathematical Research: The case of infinite Graph Theory
Analogical Reasoning in Science and Mathematics 26.10. – 28.10.2018, Ludwig-Maximilians University, Munich, Germany; joint talk with D. Sarikaya.
The Infinite Lucchesi-Younger Conjecture
GT2018 29.08. – 01.09.2018, Nyborg, Denmark.
2017
Geodesic cuts
Structure in Graphs and Matroids (SiGMa) 17.07. – 21.07.2017, University of Waterloo, Ontario, Canada.
2015
Forcing Hamilton cycles in infinite graphs
DMV Annual meeting 21.9. – 25.9.2015, University of Hamburg, Germany.