Sign up ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

I am now studying the Neumann's trace inequality.

Some of the literature said that the equality holds when the two matrices have simultaneous ordered spectral decomposition.

Yet they don't really explain what is "simultaneous ordered spectral decomposition".

share|cite|improve this question
Have a look at Theorem 0.1 of – matt Aug 14 '12 at 11:01

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.