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math.OA2021
Surjective -isometries of Grassmann spaces
Wenhua Qian, Junhao Shen, Weijuan Shi +2
Based on the characterization of surjective -isometries of unitary groups in finite factors, we describe all surjective -isometries between Grassmann spaces of projection…
math.OA2021
On cleanness of von Neumann algebras
Lu Cui, Linzhe Huang, Wenming Wu +2
A unital ring is called clean (resp. strongly clean) if every element can be written as the sum of an invertible element and an idempotent (resp. an invertible element and an idemp…