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math.FA2026
Graded face lifts and free extreme points of free spectrahedra
Eric Evert, Jack Graham
A free spectrahedron is the matricial solution set of a free linear matrix inequality . In this dimension-free setti…
math.FA2026
Completely Positive Matrix Products
Eric Evert, Michael T. Jury, Scott McCullough
Building on recent works that investigate positivity preserving matrix products, we {examine} the class of \JCP (\jcp) matrix products. A bilinear map on the Cartesian product of t…