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3 papers
Symplectic Grassmannian description of the Coulomb branch three and four point amplitudes
Veronica Calvo Cortes, Yassine El Maazouz, Subramanya Hegde +1
We present a formulation of the three- and four-point amplitudes on the Coulomb branch of N=4 SYM as integrals over the symplectic Grassmannian. We demonstrate that their kinematic…
Gram Matrices for Isotropic Vectors
Yassine El Maazouz, Bernd Sturmfels, Svala Sverrisdóttir
We investigate determinantal varieties for symmetric matrices that have zero blocks along the main diagonal. In theoretical physics, these arise as Gram matrices for kinematic vari…
Tropical invariants for binary quintics and reduction types of Picard curves
Paul Alexander Helminck, Yassine El Maazouz, Enis Kaya
We express the reduction types of Picard curves in terms of tropical invariants associated to binary quintics. We also give a general framework for tropical invariants associated t…