Timeline for How to obtain the determinant of the difference of two matrices? [closed]
Current License: CC BY-SA 3.0
9 events
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Jan 11, 2014 at 14:10 | history | closed |
Michael Renardy Carlo Beenakker Olivier Benoist Stefan Kohl♦ abx |
Needs details or clarity | |
Jan 11, 2014 at 13:00 | comment | added | Douglas Zare | @Taladris: I wonder how one can know this is not a research level question. There are examples of complicated determinants which count interesting quantities such as plane partitions with particular symmetries which can be expressed as $Det(A\pm I)$ where $A$ does not seem complicated, but where finding the characteristic polynomial of $A$ does not seem easy. | |
Jan 11, 2014 at 13:00 | answer | added | Peter Michor | timeline score: 2 | |
Jan 11, 2014 at 12:59 | comment | added | abx | $\det(I-A)=1-\mathrm{Tr}(A)+\mathrm{Tr}(\wedge^2A)+\ldots $ - but I agree this is not a question at research level. | |
Jan 11, 2014 at 12:52 | review | Close votes | |||
Jan 11, 2014 at 14:12 | |||||
Jan 11, 2014 at 12:42 | comment | added | Taladris | @MichaelRenardy: I wonder how one can know that a formula does not exist. Anyway, the OP is not a research level question. | |
Jan 11, 2014 at 12:37 | review | First posts | |||
Jan 11, 2014 at 12:40 | |||||
Jan 11, 2014 at 12:36 | comment | added | Michael Renardy | What are you expecting? A magic formula where none exists? | |
Jan 11, 2014 at 12:20 | history | asked | sedef kaplan | CC BY-SA 3.0 |