Funder
Grant-in-Aid Scientific Research
National Research Foundation of Korea
Publisher
Springer Science and Business Media LLC
Reference16 articles.
1. Aiena, P.: Fredholm and Local Spectral Theory II, Lecture Notes in Mathematics, vol. 2235. Springer, New York (2018)
2. Berberian, S.K.: Approximate proper vectors. Proc. Am. Math. Soc. 13, 111–114 (1962)
3. Bonsall, F.F., Duncan, J.: Numerical ranges of operators on normed spaces and of elements of normed algebras, London Math. Soc. Lecture Note Series, vol. 2. Cambridge University Press, London, (1971)
4. Bonsall, F.F., Duncan, J.: Numerical Ranges II, London Math. Soc. Lecture Note Series, vol. 10. Cambridge University Press, London (1973)
5. Chō, Muneo: Hyponormal operators on uniformly convex spaces. Acta Sci. Math. (Szeged) 55, 141–147 (1991)