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math.OA2022
Geometry of infinite dimensional unitary groups: convexity and fixed points
Martin Miglioli
In this article we study convexity properties of distance functions in infinite dimensional Finsler unitary groups, such as the full unitary group, the unitary Schatten perturbatio…
math.OA2013★ 2 cited
Unitarization of uniformly bounded subgroups in finite von Neumann algebras
Martin Miglioli
This note will present a new proof of the fact that every uniformly bounded group of invertible elements in a finite von Neumann algebra is similar to a unitary group. The proof in…