Skip to main content
added 52 characters in body; edited title
Source Link
Michael Albanese
  • 19.3k
  • 9
  • 87
  • 160

norm Norm and trace inequalities

If A$A$ and B$B$ are two positive definite matrices such that norm A is less than equal to norm B$\|A\| \leq \|B\|$ for every unitarily invariant norm $\| \cdot \|$, and U be n*k$U$ is an $n\times k$ matrix and V be thewith adjoint of U$V$ such that VU=I_k$VU = I_k$, then can we establish some relation between trace VAU$\operatorname{trace}(VAU)$ and VBU.$\operatorname{trace}(VBU)$?

norm and trace inequalities

If A and B are two positive definite matrices such that norm A is less than equal to norm B for every unitarily invariant norm and U be n*k matrix and V be the adjoint of U such that VU=I_k then can we establish some relation between trace VAU and VBU.

Norm and trace inequalities

If $A$ and $B$ are two positive definite matrices such that $\|A\| \leq \|B\|$ for every unitarily invariant norm $\| \cdot \|$, and $U$ is an $n\times k$ matrix with adjoint $V$ such that $VU = I_k$, then can we establish some relation between $\operatorname{trace}(VAU)$ and $\operatorname{trace}(VBU)$?

Source Link

norm and trace inequalities

If A and B are two positive definite matrices such that norm A is less than equal to norm B for every unitarily invariant norm and U be n*k matrix and V be the adjoint of U such that VU=I_k then can we establish some relation between trace VAU and VBU.