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A superposition theorem of Kolmogorov type for bounded continuous functions
Journal of Approximation Theory ( IF 0.9 ) Pub Date : 2021-06-20 , DOI: 10.1016/j.jat.2021.105609 Miklós Laczkovich
中文翻译:
有界连续函数的Kolmogorov型叠加定理
更新日期:2021-06-23
Journal of Approximation Theory ( IF 0.9 ) Pub Date : 2021-06-20 , DOI: 10.1016/j.jat.2021.105609 Miklós Laczkovich
Let denote the set of real valued continuous functions defined on . We prove that for every there are positive numbers and continuous functions with the following property: for every bounded and continuous there is a continuous function such that for every . Consequently, every can be obtained from continuous functions of one variable using compositions and additions.
中文翻译:
有界连续函数的Kolmogorov型叠加定理
让 表示定义在上的实值连续函数的集合 . 我们证明对于每个 有正数 和连续函数 具有以下性质:对于每一个有界和连续的 有一个连续函数 以至于 对于每个 . 因此,每 可以使用组合和加法从一个变量的连续函数中获得。