摘要
本文改进了[3]的结果,证明了James序列空间的范数是单调中项抽出不变的,由此我们也给出了James序列空间中元的范数的近似计算方法,这种计算方法要比穷尽法计算速度快得多。
In this paper,we show the norm of James sequence space is invariant under drawing midde term of monotone.Besides,we give a method of numerical calculus of norm.