猜测“存在Banach空间X使得K0(B(X))=Z2”的一个注记

A Note on the Guess"There Exists a Banach Space X with K_0(B(X))=Z_2"

讨论Banach空间X上算子代数B(X)的K_0群,给出K_0(B(X))=Z_2的2个充分条件.

This paper discusses the K_0-group of the operator algebra B（X） on Banach space X and gives two sufficient conditions for K_0（B（X）） = Z_2.