A unitary analogue of Kato's theorem on variation of discrete spectra

Bhatia, RajendraSinha, Kalyan B2011-03-172011-03-171988Letters in Mathematical Physics, V15, P201-204http://hdl.handle.net/10263/1769enKato's theoremUnitary analogueMathematicsPhysicsA unitary analogue of Kato's theorem on variation of discrete spectraArticle