Francesco Nowell

email: nowell at tu-berlin dot de

address: Room E217, Str. des 17. Juni 136, Berlin 10587

About

I am a PhD student at TU Berlin, working under the joint supervision of Carlos Améndola and Ben Hollering as part of the “Combinatorial Methods for Learning Max-Linear Bayesian Networks” project of the “Combinatorial Synergies” DFG priority programme (SPP 2458).

I obtained my master’s degree in mathematics in 2024, also at TU Berlin. I wrote my thesis on Gröbner walk algorithms (pdf).

My main research interests are in the areas of discrete geometry, combinatorics, and computational algebra. More recent interests include algebraic statistics and the development of mathematical software.

Publications and preprints

• A PC Algorithm for Max-Linear Bayesian Networks (with C.Améndola, B.Hollering)

• Polyhedral Aspects of Maxoids (with T.Boege, B.Hollering, K.Ferry).

• The GröbnerWalk.jl package for OSCAR (with K.Ferry).

Software

• This github repo contains code for separation criteria and causal discovery in Max-Linear Bayesian Networks.

• Kamillo Ferry and I are developing the GroebnerWalk julia package, which implements several versions of the Gröbner walk in OSCAR.

Activities

Upcoming

• 03-05.09.2025 Combinatorial Synergies Annual Conference, Hannover

Past

• 20.08.2025 Invited Talk at the “Institute for Data Science Foundations” seminar, TU Hamburg (slides)

• 10.07.2025 Discrete Geometry III lecture: Applications of Gröbner fans, TU Berlin (slides, notebook)

• 19.06.2025 Dies Mathematicus, TU Berlin (slides, notebook)

• 04-07.06.25 WUPES’25, Třešť (CZ).

• 28-30.04.25 6th Graduate Student Meeting in Applied Algebra and Combinatorics, Bologna

• 24-28.03.25 Algebraic Statistics, Munich

• 19-21.03.25 Combinatorial Synergies East, Leipzig

• 04-08.11.24 Eurandom workshop on graph Laplacians, multivariate extremes and algebraic statistics, Eindhoven

• 11-12.10.24 Symposium Discrete Mathematics, TU Berlin

• 11-13.09.24 Combinatorial Synergies kick-off conference, Osnabrück

• 29.07.24 - 02.08.24 MEGA Leipzig. Software presentation: The GröbnerWalk package (slides, notebook)

• 02.07.24 OSCAR Bootcamp, TU Berlin

• 10-12.04.24 5th graduate student meeting in applied algebra and combinatorics, FU Berlin