most citedMatrix convex sets over the Euclidean ball and polar duals of real free spectrahedra

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math.FA2026★ 1 cited

Matrix convex sets over the Euclidean ball and polar duals of real free spectrahedra

Eric Evert, Benjamin Passer

We show that the free spectrahedron determined by universal anticommuting self-adjoint unitaries is not equal to the minimal matrix convex set over the ball in dimension three or h…

math.FA2024

Extreme points of matrix convex sets and their spanning properties

Eric Evert, Benjamin Passer, Tea Å trekelj

This expository article gives a survey of matrix convex sets, a natural generalization of convex sets to the noncommutative (dimension-free) setting, with a focus on their extreme…