分块矩阵的块数值值域等于谱的条件

翟发辉，韩杰

The condition of the block numerical range of a block operator matrix equal to its spectrum

ZHAI Fa-Hui, HAN Jie

J4 . 2012, (1): 1 -4 . DOI: 10.3976/j.issn.1002-4026.2012.01.001