Timeline for Are unitarily equivalent permutation matrices permutation similar?
Current License: CC BY-SA 4.0
5 events
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| Dec 11, 2019 at 14:51 | comment | added | Benjamin Steinberg | BTW, James Propp asked on MO a number of years ago if an analogue holds for arbitrary mappings (mathoverflow.net/questions/198144/…) which lead me to write the paper cambridge.org/core/journals/canadian-mathematical-bulletin/…. | |
| Dec 11, 2019 at 14:26 | comment | added | Benjamin Steinberg | @Mindwin I also pointed out this is an old, but well known result of Brauer (which was published in Annals in the the 40s if I remember correctly). The proof of Kovacs is very short and elegant and covers all fields and that is why I provided the link. I indicated a short proof in characteristic 0 at the bottom of Yves' proof. The characteristic p proof is more complicated so I leave the link. | |
| Dec 11, 2019 at 14:25 | history | edited | Benjamin Steinberg | CC BY-SA 4.0 |
added 854 characters in body
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| Dec 11, 2019 at 13:17 | comment | added | Mindwin Remember Monica | Hello, Benjamin. Your answer is only a link. meta.stackexchange.com/a/8259/271150 | |
| Dec 10, 2019 at 14:55 | history | answered | Benjamin Steinberg | CC BY-SA 4.0 |