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math.CO2025
MacMahon's Double Vision: Partition Diamonds Revisited
Matthias Beck, Kobe Wijesekera
Plane partition diamonds were introduced by Andrews, Paule, and Riese (2001) as part of their study of MacMahon's -operator in search for integer partition identities. More rece…
math.CO2024
Acyclotopes and Tocyclotopes
Eleon Bach, Matthias Beck, Sophie Rehberg
There is a well-established dictionary between zonotopes, hyperplane arrangements, and their (oriented) matroids. Arguably one of the most famous examples is the class of graphical…