Citation: | ZHAO Lingling, GAO Kai, HONG Mingli, WANG Fuchang. a-Weyl's Theorem and Property($\mathcal{R} $) for Operator Functions[J]. Journal of South China Normal University (Natural Science Edition), 2023, 55(5): 80-87. DOI: 10.6054/j.jscnun.2023066 |