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math.LO2026
On the abstract elementary class of acts with pure embeddings
Jonathan Feigert, Daniel Herden, Marcos Mazari-Armida
We study the abstract elementary class of acts with pure embeddings. In particular, we show that stability and superstability in this class can be characterized in terms of the mon…
math.CO2026
Chaotic and periodic behavior of jeu de taquin on infinite Young tableaux
Daniel Herden, Markus Hunziker, Jonathan Meddaugh +9
Young tableaux are fundamental objects in algebraic combinatorics and representation theory, with operations such as promotion and jeu de taquin playing a central role in their str…