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c*-algebras 1isomorphisms 1numerical range 1triple product preservers 1von neumann algebras 1

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1 paper

math.OA2026

Algebraic Maximal Numerical Range and its preservers of Triple Products on -Algebras

Yongqi Fan, Xiaofei Qi, Jinchuan Hou

The paper investigates the algebraic maximal numerical range in unital C*-algebras and characterizes surjective maps that preserve this range for triple products, showing they are…