【摘要】 设为Banach空间X中一自反代数使得在Lat中O+≠O且X_≠X，则的每一环自同构φ（环反自同构ψ）具有形式φ（A）=TAT-1（ψ（A）=TA*T-1），其中T：X→X（T：X*→X）或为一有界线性双射算子或为一有界共轭线性双射算子。特别地，φ和ψ都是连续的。更多还原

【Abstract】 Let be a reflexive algebra in Banach space X such that O+≠O and X_≠X in Lat, thenevery ring automorphism φ (resp. ring antiautornorphism ψ) of is of the form φ(A) =TAT-1 (resp. ψ(A)= TA* T-1), where T: X→X (resp. T: X*→X) is either a bounded linear bijective operator or a boundedconjugate linear bijective operator. In particular, both φ and ψ are continuous.更多还原