期刊名称：International Journal of Mathematics and Mathematical Sciences
印刷版ISSN：0161-1712
电子版ISSN：1687-0425
出版年度：2004
卷号：2004
DOI：10.1155/S0161171204401409
出版社：Hindawi Publishing Corporation
摘要：We give an alternative proof of a theorem of Gustafson and
Seddighin (1993) following the idea used by Das et al. in an earlier study of antieigenvectors
(1998). The result proved here holds for certain
classes of normal operators even if the space is infinite
dimensional.
