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    徐洪坤. 非扩张算子对不变逼近的应用[J]. 华东理工大学学报（自然科学版）, 1992, (1).
    引用本文: 徐洪坤. 非扩张算子对不变逼近的应用[J]. 华东理工大学学报（自然科学版）, 1992, (1).
    shu
    Xu Hongkun. Application of Nonexpansive Operators to Invariant Approximations[J]. Journal of East China University of Science and Technology, 1992, (1).
    Citation: Xu Hongkun. Application of Nonexpansive Operators to Invariant Approximations[J]. Journal of East China University of Science and Technology, 1992, (1).
    shu

    非扩张算子对不变逼近的应用

    Application of Nonexpansive Operators to Invariant Approximations

      摘要
    • 摘要: 利用非扩张算子的不动点理论,证明了最佳逼近和不变逼近的存在性。所获结果推广改进了某些已知结果,并给出了A. Smolus问题的一个扩充性回答。

       

      Abstract: The existence for both best and invariant approximations is proven by using the fixed point theory of nonexpansive operators. The obtained results generalize and improve some known results, and also provide an extension answer to a question of A. Smolus.

       

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