Best approximation by closed unit balls
الموضوعات :H. R. Kamali 1 , H. Mazaheri 2 , H. R. Khadezadeh 3 , H. Ardakani 4
1 - Department of Mathematics,Ardakan Branch,Islamic Azad
university,Ardakan,Iran.
2 - Faculty of Mathematics, Yazd University, Yazd, Iran.
3 - Faculty of Mathematics, Yazd University, Yazd, Iran.
4 - Faculty of Mathematics, Yazd University, Yazd, Iran.
الکلمات المفتاحية: Best approximation, Orthogonality, Closed unit balls, Kadec-Klee property, Shur property,
ملخص المقالة :
We obtain a sucint and nesessery theoreoms simple for compactness andweakly compactness of the best approximate sets by closed unit balls. Also weconsider relations Kadec-Klee property and shur property with this objects.These theorems are extend of papers mohebi and Narayana.
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