设(X,μ)是一个没有原子的概率测度空间,则测度卢可视为由单位质量经反复细分所获得的测度.证明从(X,μ)到([0,1),m)的保测映射的存在性.作为这个结果的应用,给出了空间L^2(X,μ)上的标准正交系的构造方法.最后,具体给出L^2(C,μc)上的一个标准正交系,其中C是三分Cantor集,μc是Cantor测度.
Let (X,μ) be a probability measure space with no atoms. Then μ can be regarged as a measure defined by repeated subdivision. It proved that there is a measure-preserving transformation from(X,/1) to ([0, 1),m), As an application of this result, gives a method for constructing an orthonormal system on L2 (X,μ). Finally, obtains an orthonormal system on L2 (C,μc), where C is the middle-third Cantor set, μc is the Cantor meausre.