Well-bounded operators are those which possess a bounded functional calculus for the absolutely continuous functions on some compact intervals.

良有界算子是这样一类算子，它对于在某个紧区间上绝对连续的函数具有有界的函数演算。

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Although the theory of well bounded operators is well established, there are a number of unresolved and interesting questions which are potentially fruitful areas for further research.

尽管良性有界算子理论已经建立，但仍有许多未解决的有意义的问题。

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