Timeline for How to prove a unit norm matrix is the average of two unitary matrix
Current License: CC BY-SA 2.5
5 events
| when toggle format | what | by | license | comment | |
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| Jan 3, 2011 at 4:27 | comment | added | yaoxiao | I see what you have mean，great！ I think it is really interesting， when we compare it with the similar claim “every matrix can be decompsed into linear combinations of four orthogonal matrix | |
| Jan 2, 2011 at 20:48 | comment | added | Mikael de la Salle | @yaoxiao: the matrix $D$ is hermitian (it is even positive semid-efinite), and every hermitian matrix can be diagonalized in an orthonormal basis. | |
| Jan 2, 2011 at 20:41 | comment | added | yaoxiao | thanks for your answering this question. However I still doubt whether the basis E is orthogonal(unitary) basis. | |
| Jan 2, 2011 at 19:48 | history | edited | Mikael de la Salle | CC BY-SA 2.5 |
added 64 characters in body
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| Jan 2, 2011 at 19:41 | history | answered | Mikael de la Salle | CC BY-SA 2.5 |