Borel函数的二分法
A dichotomy for Borel functions
摘要:
Solecki在\cite{Sol}中发现的二分法指出,任何Baire类1函数要么是$σ$ -连续的,要么“包含”Pawlikowski函数$P$。本文的目的是给一个论点,这是简单的比原来的证明索莱茨基,并给出了一个更强的声明:二分法的所有波莱尔职能。
英文摘要:
The dichotomy discovered by Solecki in \cite{Sol} states that any Baire class 1 function is either $σ$-continuous or "includes" the Pawlikowski function $P$. The aim of this paper is to give an argument which is simpler than the original proof of Solecki and gives a stronger statement: a dichotomy for all Borel functions.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。