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OnM-ideals and best approximation

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Abstract

In this paper we will prove some theorems on theM-ideals of compact operators and the best approximation of quasitriangular operator algebras. These results improve and extend the known results in [4, 5, 7].

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Authors and Affiliations

  1. Department of Mathematics, Qufu Normal University, 273165, Qufu, China

    Han Deguang

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  1. Han Deguang
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This work is supported in part by the National Natural Science Foundation of China.

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Han, D. OnM-ideals and best approximation. Acta Mathematicae Applicatae Sinica 10, 213–219 (1994). https://doi.org/10.1007/BF02006120

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  • DOI: https://doi.org/10.1007/BF02006120

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