MR2806473 (2012f:47002) Hirasawa, Go(J-IBARE) A metric for unbounded linear operators in a Hilbert space. (English summary) Integral Equations Operator Theory 70 (2011), no. 3, 363–378.
- Authors: Tschinke, F
- Publication year: 2012
- Type: Recensione in rivista (Recensione in rivista)
- OA Link: http://hdl.handle.net/10447/103939