Banach空间上基本完全的双正交系成为无条件基的充要条件

The necessary and sufficient condition which fundamental and total biorthogonal system in Banach spaces beUnconditional basis

本文利用BK空间和乘子空间的性质 ,讨论了在不含C0 的C0py的Banach空间上基本完全的双正交系成为无条件基的充要条件。

Utilizing the theories of BK spaces and multiplier spaces, this paper discuss the necessary and sufficient condition which fundamental and total biorthogonal system in Banach spaces which don't contain copy of is unconditional basis.