Publisher
Springer Science and Business Media LLC
Reference14 articles.
1. F. F.Bonsall and J.Duncan, Numerical ranges of operators on normed spaces and of elements of normed algebras. London Math. Soc. Lecture Notes Ser.2, Cambridge 1971.
2. P. G. Dixon, Automatic continuity of positive functionals on topological involution algebras. Bull. Austral. Math. Soc.23, 265?281 (1981).
3. M. S. Espelie, Multiplicative and extreme positive operators. Pacific J. Math.48, 57?66 (1973).
4. T.Husain, Multiplicative functionals on topological algebras. Research Notes in Mathematics85, Boston 1983.
5. V. I.Istràtescu, Strict convexity and complex strict convexity. Lecture Notes in Pure and Applied Math., New York 1984.