摘要: In this note, some properties of the interior of numerical ranges of operators are established, and an alternative proof of Embry’s theorem associated with the interior of a numerical ranges of an operator is given(see [3]).
中图分类号:
窦艳妮 , 李陈心 , 李荣 , 杜鸿科. 算子数值域的内点[J]. 数学季刊, 2015, 30(4): 624-632.
DOU Yan-ni, LI Chen-xin, LI Rong, DU Hong-ke. The Interior of Numerical Ranges of Operators[J]. Chinese Quarterly Journal of Mathematics, 2015, 30(4): 624-632.