利用一致可逆性质定义了一个谱集,通过该谱集与拓扑一致降标之间的关系,给出了a-Wey1定理成立的充要条件,研究了算子与其共轭的a-Wey1定理的等价性,讨论了算子矩阵的亚循环性.
In this note,using the relation between the new spectrum defined in view of the property of consistency in invertibility and topological uniform descent,the sufficient and necessary conditions for which a-Weyl's theorem holds for a bounded linear operator defined on a Hilbert space are given.Also,the equivalence of a-Wey1's theorem for an operator and its adjoint is provided.In additional,the hypercyclicity for operator matrices is considered.