I am a doctoral student of Clemens Heuberger and Andrei Asinowski, currently employed as a project assistant in the doc.funds doctoral school Modeling -- Analysis -- Optimization of discrete, continuous, and stochastic systems in the Department of Mathematics at Alpen-Adria-Universität Klagenfurt in Austria. Feel free to contact me at my e-mail address: sarah.selkirk@aau.at.