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On the numerical radius of an element of a normed algebra

Published online by Cambridge University Press:  18 May 2009

GH. Mocanu
GH. Mocanu
Affiliation:
Faculty of Mathematics, University of Bucharest
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Let A be a unital normed algebra over the complex field ℂ, A' the dual space of A, i.e., the Banach space of all continuous linear functionals on A, and let S be the set of all states on A, i.e.,

Type
Research Article
Information
Glasgow Mathematical Journal , Volume 15 , Issue 1 , March 1974 , pp. 90 - 93
Copyright
Copyright © Glasgow Mathematical Journal Trust 1974

References

REFERENCES

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