A Condition that a Normal Operator have a Closed Numerical Range

• 1 February 1957
• journal article
• Published by JSTOR in Proceedings of the American Mathematical Society
• Vol. 8  (1) , 85-88
• https://doi.org/10.2307/2032816

Abstract

Keywords

• NORMAL OPERATOR
• CLOSED NUMERICAL RANGE
• NUMERICAL RANGE REFERENCES