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math-ph2025
Open Hurwitz numbers and the mKP hierarchy
Alexandr Buryak, Ran J. Tessler, Mikhail Troshkin
We give a natural definition of open Hurwitz numbers, where the weight of each ramified covering includes an integer parameter taken to the power that is equal to the number of…
math-ph2025
The Amplituhedron BCFW Triangulation
Chaim Even-Zohar, Tsviqa Lakrec, Ran J. Tessler
The amplituhedron Ank4 is a geometric object, introduced by Arkani-Hamed and Trnka (2013) in the study of scattering amplitudes in quantum field theories. They conjecture that Ank4…