Timeline for Circulant $\lbrace -1,1 \rbrace $ matrices with eigenvalues seen in first row
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
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| Jan 21, 2011 at 20:33 | comment | added | Steve Huntsman | Using Denis' answer to modify this code should make $n \le 12$ accessible to exhaustive search. | |
| Jan 21, 2011 at 15:57 | comment | added | Luis H Gallardo | @Steve: Thanks for computations. An interesting case is $n=36$ but for the moment I do not see how try to do this case. | |
| Jan 10, 2011 at 15:50 | comment | added | Steve Huntsman | k=6 gives no solutions also. | |
| Jan 10, 2011 at 6:45 | comment | added | Steve Huntsman | BTW, it's not clear to me how much $C$ really has to do with anything. It's not actually used in the code except to check the determinant (and for this purpose we could use a special formula for determinants of circulant matrices). | |
| Jan 10, 2011 at 6:42 | history | edited | Steve Huntsman | CC BY-SA 2.5 |
edited body; added 4 characters in body; deleted 63 characters in body
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| Jan 10, 2011 at 5:55 | history | edited | Steve Huntsman | CC BY-SA 2.5 |
deleted 1 characters in body
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| Jan 10, 2011 at 5:46 | history | answered | Steve Huntsman | CC BY-SA 2.5 |