Article
Keywords:
operator ideal; stability
References:
[3] Light, W. A. and Cheney, E. W.: Approximation theory in tensor product spaces. Lecture Notes in Math. 1169.
[4] Köthe, G.:
Topological vector spaces II. Springer Verlag 1979.
MR 0551623
[6] Treves, F.:
Topological vector spaces, Acad. Press 1967.
MR 0225131