研究了赋β-范空间及其共轭锥上的最佳逼近性质,给出了豫维赋β-范空间上最佳逼近元的存在性定理,并利用赋β-范空间上的Hahn-Banach定理揭示了赋β-范空间与其共轭锥之间的共轭性,得到了最佳逼近点存在性的等价刻画.
The best approximation was discussed in β-normed space and its conjugate cone, and the existence theorem of the best approximating element in n-dimensional space was given. Then the conjugacy between β-normed space and its conjugate cone was discovered and an equivalent representation of the best approximating point was obtained by the Hahn-Banach theorem inβ-normed space.