Kamillo Ferry
Hey there! I’m a mathematician and computer scientist (what they call ‘Informatiker’ in Germany). Right now, I’m a PhD student with Professor Carlos Améndola at the research group of Algebraic and Geometric Methods in Data Analysis at Technische Universität Berlin. There, I’m part of the research project Likelihood Geometry of Max-Linear Bayesian Networks of MATH+.
My email address is “kafe (at) kafe (dot) dev”.
Currently, I’m working on the following:
- my doctoral thesis, which means I hope to be done with everything and be a ‘Dr. Ferry’ by the end of March 2026. I’m very much looking for opportunities to work with some of the awesome mathematicians I’ve met or have yet to meet as a postdoc.
- Max-linear Bayesian networks and alcoved polyhedra, the combinatorics of the latter and how to estimate them from data, and if this information is useful for conditional independence in the underlying networks
- implementing the Gröbner walk in Julia (with some background found here)
Generally speaking, my mathematical interests lie in algebraic geometry, where I enjoy resolutions of singularities and enumerative problems, tropical geometry with its tropical linear spaces and connections to the field with one element and algebraic statistics, where we use algebraic geometry to describe properties of statistical models.
On the computer science side, I’m very interested in computer graphics with raytracing as a nice test bed for mathematical programming, operating systems where you have to control every single piece of a computer, and formal languages for their connection to anything you might want to do with a non-commutative monoid.
Besides those, you can get me very excited about complexity theory from all the way down at circuit complexity, along parametrized complexity in the middle and all the way up to computability, and arithmetic geometry with the integers as a fun curve over the field with one element.
I obtained a BSc in Informatics at Leibniz Universität Hannover and MSc in Informatics and Mathematics also at Leibniz Universität Hannover.
Recent News
- Nov 11, 2025: New preprint 'Minimum bounding polytropes for estimation of max-linear Bayesian networks'
- Oct 3, 2025: Article 'Tropical combinatorics of max-linear Bayesian networks" accepted into the Journal of Symbolic Computation
- Jul 10, 2025: Preprint 'Tropical combinatorics of max-linear Bayesian networks' now with data
- Mar 17, 2025: New preprint 'Good Triangulations of Cosmological Polytopes' dropped
- Mar 13, 2025: New preprint 'The GroebnerWalk.jl package for OSCAR' dropped
Upcoming activities
- Mar 16–20, 2026: Workshop on Polyhedral Geometry for Neural Networks at University of Technology Nuremberg, Germany
- Feb 23–27, 2026: OSCAR Coding Sprint at TU Berlin, Germany
Past activities
- Feb 2–4, 2026: Developments in Algorithmic, Discrete and Tropical Geometry at Zuse Institute Berlin, Germany
- Jan 29–30, 2026: North German Algebraic Geometry Seminar (NoGAGS) at HU Berlin, Germany
- Oct 6–8, 2025: Chow Lectures at MPI MiS, Leipzig, Germany
- Sep 25, 2025: Seminar on Nonlinear Algebra at MPI MiS, Leipzig, Germany
- Jul 28–Aug 1, 2025: The International Symposium on Symbolic and Algebraic Computation (ISSAC) 2025 at Guanajuato, Mexico (presenting joint work)
- Jul 7–11, 2025: SIAM Conference on Applied Algebraic Geometry (AG25) at Madison, Wisconsin, USA (giving an invited talk, slides)
- Jun 17, 2025: Oberseminar Institut für Theoretische Informatik at Universität zu Lübeck, Germany (slides)
- Jun 4–7, 2025: The 13th Workshop on Uncertainty Processing (WUPES 2025) at Třešť, Czech Republic
- Jun 2–4, 2025: The 11th Conference of the Fachgruppe Computeralgebra at MPI MiS, Leipzig, Germany (slides)
- Mar 24–28, 2025: Algebraic Statistics 2025 at Munich, Germany
- Jan 28, 2025: Oberseminar Groups and Geometry at Universität Bielefeld, Germany
- Jan 28, 2025: Oberseminar Diskrete Mathematik, Geometrie und Optimierung at Goethe-Universität, Frankfurt am Main, Germany
- Nov 28, 2024: Discrete Geometry Nexus: A Berlin Workshop at FU Berlin (slides)
- Nov 4–8, 2024: Eurandom workshop on graph Laplacians, multivariate extremes and algebraic statistics at Eindhoven, The Netherlands
- Oct 11–12, 2024: Symposium Discrete Mathematics at Berlin, Germany
- Sep 26–27, 2024: Discrete Mathematics and Biology: the legacy of Andreas Dress at MPI MiS, Leipzig, Germany
- Sep 9–13, 2024: Summer School on Tropical Linear Spaces at Tübingen, Germany (10-minute talk)
- Jul 29–Aug 2, 2024: MEGA 2024 at Leipzig, Germany (poster)
- Jul 17, 2024: MATH+ Spotlight talk at TU Berlin (slides)
- Jul 3, 2024: OSCAR Boot Camp at TU Berlin
- Jun 18–21, 2024: Spec(ℚ̅(2πi)) at The Fields Institute, Toronto, Canada (with lightning talk about polytropes from acyclic graphs)
- Feb 12–16, 2024: Causality in Extremes at Université de Genève, Geneva, Switzerland
- Feb 1–2, 2024: European Workshop on Algebraic Statistics and Graphical Models at Riessersee Hotel, Garmisch-Partenkirchen, Germany
- Jan 12, 2024: What is a tropical curve? at "What is...?" student seminar, Berlin (recording available here)
- Oct 9–13, 2023: Algebraic Statistics for Ecological and Biological Systems at Institute for Mathematical and Statistical Innovation, Chicago, US
- Sep 6–8, 2023: Conference on Applied Algebra at University of Osnabrück, Germany (presented a poster there)
- Jul 6–7, 2023: Queer and Trans Mathematicians in Combinatorics at Queen Mary University of London, England
- Jun 7–8, 2023: Let's get ℝeal at MPI MiS, Leipzig, Germany
- May 14–19, 2023: Computations and Data in Algebraic Statistics (Online) at Casa Matemática Oaxaca (CMO), Mexico
- May 11–12, 2023: Berlin-Hannover Algebraic Geometry Workshop at HU Berlin, Germany
- Mar 17, 2023: Applications of Tropical Geometry in Leipzig-Berlin at MPI MiS, Leipzig, Germany
- Jul 6–8, 2022: Spec(ℚ̅) at The Fields Institute, Toronto, Canada