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math.OA2026
Rigidity for Isomorphisms between Operator Algebras with Commutative Diagonals
Elias G. Katsoulis, Feifei Miao, Wenming Wu +1
We show that two families of operator algebras, the CSL algebras of multiplicity free CSLs and the semicrossed products of commutative C-algebras, demonstrate a strong form of…
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.OA2018
Wigner-Type Theorem on transition probability preserving maps in semifinite factors
Wenhua Qian, Liguang Wang, Wenming Wu +1
The Wigner's theorem, which is one of the cornerstones of the mathematical formulation of quantum mechanics, asserts that every symmetry of quantum system is unitary or anti-unitar…