Prof. Dr. Alexander Pott
Gebäude 03, Raum 205a
Tel. +49 391 67 58322
Fax. +49 391 67 41213
alexander.pott@ovgu.de
Dr. Christian Kaspers

Dr. Christian Kaspers
Postdoctoral researcher
I mainly work on cryptographically relevant Boolean functions such as APN functions and their generalizations. In this context, I am particularly interested in connections to design theory. As a fully trained secondary school teacher, I am also always interested in questions of mathematics education, especially those related to pure mathematics.
After completing my PhD in 2021, I worked for two years as a teacher and one year in mathematics education. Since 2024, I have returned to discrete mathematics.
Publications
- Equivalence Problems of Almost Perfect Nonlinear Functions and Disjoint Difference Families. Dissertation. Otto-von-Guericke-Universität Magdeburg, 2021. https://dx.doi.org/10.25673/36521
- with Yue Zhou. A lower bound on the number of inequivalent APN functions. J. Combin. Theory Ser. A 186 (2022), Paper No. 105554, 38 pp. https://doi.org/10.1016/j.jcta.2021.105554
- with Yue Zhou. The number of almost perfect nonlinear functions grows exponentially. In: J. Cryptology 34.4 (2021), 37 pp. https://doi.org/10.1007/s00145-020-09373-w
- https://doi.org/10.1515/9783110621730-005
- Solving isomorphism problems about 2-designs from disjoint difference families. In: J. Combin. Des. 27.5 (2019), pp. 277-294. https://doi.org/10.1002/jcd.21648 .
Talks (Mathematics)
- Kolloquium Bildungsforschung with Stefanie Rach, April 24, 2024, Magdeburg (Germany)
- KOLKOM 2019, November 8-9, 2019, Paderborn (Germany)
- Seminar talk, September 10, 2019, Changsha (China)
- Fq14, June 3-7, 2019, Vancouver (Canada)
- Combinatorics 2018, June 3-9, 2018, Arco (Italy)
- GDMV 2018, March 5-9, 2018, Paderborn (Germany)
Mathematics Education
Winter semester 2023/24 | Schulpraktische Übungen im Fach Mathematik |
Mathematics
I was awarded the Otto-von-Guericke Teaching Award 2020 for my online teaching during summer semester 2020,.
Winter semester 2020/21 | Lineare Algebra fürs Lehramt (Übung, online) |
Mathematische Methoden I für Wirtschafts- und Humanwissenschaftler (Hörsaalübung, online) | |
Summer semester 2020 | Mathematische Methoden II für Wirtschafts- und Humanwissenschaftler (Hörsaalübung + Kleinübung, online) |
Winter semester 2019/20 | Lineare Algebra fürs Lehramt (Übung) |
Summer semester 2019 | Geometrie (Übung) |
Winter semester 2018/19 | Lineare Algebra fürs Lehramt (Übung) |
Mathematische Methoden I für Wirtschafts- und Humanwissenschaftler (Hörsaalübung) | |
Summer semester 2018 | Mathematische Methoden II für Wirtschafts- und Humanwissenschaftler (Hörsaalübung + Kleinübung) |
Winter semester 2017/18 | Mathematische Methoden I für Wirtschafts- und Humanwissenschaftler (Kleinübung) |
Summer semester 2017 | Mathematische Methoden I für Wirtschafts- und Humanwissenschaftler (Kleinübung) |
since 2024 | Postdoctoral researcher at the Discrete Mathematics Group at Otto von Guericke University (OVGU) Magdeburg (since 2025 supported by DFG) |
2023 - 2024 | Postdoctoral researcher at the Mathematics Education Group at OVGU |
2022 - 2023 | Upper secondary school teacher for mathematics and economics at a Gymnasium in Magdeburg |
2021 - 2022 | Teacher in the practical teacher training work period for mathematics and economics at a Gymnasium in Magdeburg |
2018 - 2023 | Visiting lecturer at Harz University of Applied Science, Wernigerode |
2017 - 2021 | Teaching and Research Assistant and PhD Student at the Discrete Mathematics Group at OVGU, title of the thesis: Equivalence Problems of Almost Perfect Nonlinear Functions and Disjoint Difference Families, supervisor: Alexander Pott |
2014 - 2017 | MEd: Teaching degree for an academic high school (Mathematics & Economics) at OVGU |
2012 - 2014 | BSc: Teaching degree for an academic high school (Mathematics & Economics) at OVGU |
2013 - 2017 | Teaching assisstant at the Mathematics Department at OVGU |