Compact sets in the free topology – M. Augat, S. Balasubramanian, S. McCullough

Bianalytic Maps Between Free Spectrahedra – M. Augat, J.W. Helton, I. Klep, S. McCullough

Bianalytic maps between spectrahedra and spectraballs – M. Augat, J.W. Helton, I. Klep, S. McCullough

The free Grothendieck theorem – M. Augat