正交测度的共解析极大集
A co-analytic maximal set of orthogonal measures
摘要:
证明了若$V=L$,则Cantor空间上存在一个$Π^1_1$极大正交(即相互奇异)测度集.这提供了一个自然的对位著名的定理Preiss和Rataj没有解析集的措施可以是最大正交。
英文摘要:
We prove that if $V=L$ then there is a $Π^1_1$ maximal orthogonal (i.e. mutually singular) set of measures on Cantor space. This provides a natural counterpoint to the well-known Theorem of Preiss and Rataj that no analytic set of measures can be maximal orthogonal.
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