Jannis Halbey

I am a fourth-year PhD candidate at the Institure of Mathematics, TU Berlin under the supervision of Sebastian Pokutta. I am also a member of the IOL group at Zuse Institute Berlin and the Berlin Mathematical School (BMS).

My research interests lie in large-scale optimization, convex geometry, and combinatorial optimization, with a particular focus on projection-free methods such as Frank–Wolfe algorithms and their variants. I am interested in the development and analysis of scalable algorithms for convex, constrained optimization, especially correction and active-set strategies. More recently, I have worked on lower bounds and convergence analysis for first-order methods, aiming to better understand fundamental limits of these algorithms. Furthermore, I am actively contributing to the FrankWolfe.jl package.