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From amplituhedra to flagtopes

Barkley, Grant T. et al.
arXiv (All) · Papers
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14m1515b4820f5581t13algebraic-geometrycombinatoricsmathematical-physicsrepresentation-theory
The amplituhedron was introduced by Arkani-Hamed and Trnka (2014) to geometrically encode scattering amplitudes in high-energy physics. It can be viewed as the generalization of a cyclic polytope into the Grassmannian, and is defined to be the projection of the totally nonnegative part of one Grassm
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