论文信息 - Approximation by Superpositions of a Sigmoidal Function

Approximation by Superpositions of a Sigmoidal Function

We generalize a result of Gao and Xu [4] concerning the approximation of functions of bounded variation by linear combinations of a fixed sigmoidal function to the class of functions of bounded φ-variation (Theorem 2.7). Also, in the case of one variable, [1: Proposition 1] is improved. Our proofs are similar to that of [4].

G. Lewicki | G. Marino

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