Gram Matrices for Isotropic Vectors

Published 13 Nov 2024 in math.AC and hep-th | (2411.08624v1)

Abstract: 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 variables in quantum field theories. We study the ideals of relations among functions in the matrix entries that serve as building blocks for conformal correlators.

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